Hydrogen Line Leveling Guide

Read This First: Angstrom Opens November 13, 2026

The first full universe, Angstrom, opens Friday, November 13, 2026, at 3pm UK. The launch graphic says it plainly: free in your browser, and everyone starts together. An open beta has been running ahead of the full release, and the beta universe stays open after launch for the people who played it. Beta players who reach the reward line keep a Beta Veteran badge and get 500 tokens on launch day, per the official site.

This is a launch-watch guide, and it is honest about that. Hydrogen Line has not fully released yet, so there is no established meta, no measured research times, and no production-rate tables to copy. What exists is the official site, the launch material on Instagram, and the countdown posts — and that is what this guide is built on. Every fact below carries its source, and everything the developers have not published yet is flagged as unannounced rather than filled in with a guess.

The short version: Hydrogen Line is a free real-time space strategy game in your browser. Everyone plays in one shared galaxy, starts with one planet each, and flights take real time — a rival can watch your fleet coming, and the question is whether they are awake. Your homeworld starts with three mines and a power problem, the tech tree and the dock open the two halves of the game, and the first real milestone is a second colony. If you only read three sections, read Your First Planet, Colonies, and The Launch Race — those are the three places a new commander loses the most time.

What Hydrogen Line Is

Hydrogen Line is a free real-time space strategy game in your browser, run by two developers who met in 2015 in the same alliance of a game a lot like this one, per the official site. They are married now, they run Hydrogen Line between the two of them, and every big change goes to a player vote before it goes live. That is the whole studio: two people, a game they have wanted to play since 2015, and a player base that votes on the big changes. It is worth knowing, because it explains the game’s shape — a small, focused strategy game built by players of the genre, not a big-budget production chasing a launch window.

The premise is simple and it is the game’s central idea: everyone plays in the same galaxy. One galaxy shared by every player, one planet each to start with, and flights that take real time. Free, with nothing to download. You pick a target on the starmap, the game shows you when the fleet will arrive, and it is on its way. A rival can watch it coming. The question is whether they are awake. That sentence is the whole game in miniature — a real-time strategy game where time is the resource, attention is the defense, and the galaxy is shared, so every decision you make is visible to someone else.

The name is not decoration. The hydrogen line is real: 1420.405 MHz, the radio emission of hydrogen, the frequency astronomers listen on for other civilisations. The official site says it plainly, and every launch graphic carries the frequency under the logo. Hydrogen is the game’s fuel and its bottleneck — the commonest thing in the universe and still the thing every colony runs short of — and the fiction is built on the real physics of the element. Some nights, the site says, the arrays pick up a big fleet where no fleet can be seen. It gets louder, closer, and stops. No ships are ever found. That is flavor text, but it is flavor text that tells you what the game is about: listening for fleets you cannot see, on a frequency that is always open.

One more framing note before the mechanics: this guide uses the official site as the authority wherever the site and the launch material differ. The clearest case is the size of the map. The official site says one galaxy shared by every player. The October 18 launch carousel describes colonising new planets across five galaxies of 499 systems. Both statements are in this guide, with the carousel figure attributed to the carousel, because the official site’s line is the one that governs the launch framing — one galaxy, everyone in it, everyone starting together.

Your First Planet: Mines, Power, Lab

Every player starts with one planet carrying three mines: a Metal Mine, a Silicon Mine and a Hydrogen Extractor, and all three need power, so a Solar Plant comes early, per the official site. That is the whole early economy — metal and silicon for building, hydrogen for fuel — and the first decisions are which mine to push and when the Solar Plant goes up. The mines are the farm, the power is the constraint, and the order you build in is the first leveling decision you make.

Metal and silicon feed buildings, ships and research. Hydrogen feeds every flight. That split is the economy in one sentence, and it is worth internalizing before you spend anything: metal and silicon are the building currencies, hydrogen is the movement currency, and a fleet with no fuel is a fleet that stays home. The companion Hydrogen Line Farming Guide covers the production side in detail — this guide covers the progression side, and the progression side starts with the same three mines.

Upgrades take minutes at first and most of a day later, and they carry on while you are asleep, per the official site. That is the most important sentence in this section, because it defines what leveling means in Hydrogen Line. Leveling here is a queue-management game, not a grind. You set an upgrade running, it finishes while you are asleep, and the skill is in never letting a finished upgrade sit idle while you sleep. A player who queues the next upgrade before bed levels faster than a player who queues it in the morning, because the second player’s planet sat idle all night.

The first build order, as far as the official site documents it, is straightforward: mines first, power early, then the two buildings that open the rest of the game. A Technology Lab opens the tech tree and a Dock builds the ships. Keep the lab working and the dock busy, and do not let a finished upgrade sit idle while you sleep. The Solar Plant is the trap to watch for — three mines that all need power, and a planet that cannot run them without it. Pushing mines without building the Solar Plant the mines need is the first mistake in the book, and it is the one the official site warns about by putting the power sentence in the same breath as the mines.

The Tech Tree and the Dock

A Technology Lab opens the tech tree. That is, in full, what the official site says about research — and it is honest to say that this guide cannot tell you what is in the tree, how long each technology takes, or which technology to research first, because none of that has been published. What can be said is structural: the lab is the gate to the tree, the tree is the gate to everything that is not a mine, and the lab should be working from the moment it exists. A lab that sits idle is a tech tree that is not growing, and a tech tree that is not growing is a fleet that is not improving.

The Dock is the other half of the pair, and it is better documented, because the ships are listed. The Dock builds the ships — Scouts, Interceptors, Cruisers, Frigates, Destroyers, Dreadnoughts, plus Transports, the Colony Ship, Espionage Probes, the Wreckage Collector, and the Solar Sail. The ship list is the tech tree made visible: each class is an answer to a particular problem, and the fleet you build is a set of answers. The full ship roles are in Fleets: From Scouts to Dreadnoughts below.

The leveling advice for the lab and the dock is the same advice as for the mines: keep them busy. The game runs while you sleep, so the bottleneck is not your play time — it is your queue discipline. A lab with a research running overnight and a dock with a ship building overnight are two systems growing while you are not at the keyboard. A lab and a dock that finish their work at 2 a.m. and sit idle until you wake up at 7 a.m. have lost five hours of growth, and five hours a night adds up to a lost day every few days. Set the long jobs before bed. That is the whole trick, and it is the trick that separates the players who grow steadily from the players who wonder why their neighbors have twice as many colonies.

One more thing the official site documents that belongs in this section: when sign-ups open at launch, anyone can claim a planet. During the beta, joining is by invite from a player — a link they send you, or a code to type in, and every player has a few to give. At launch, that gate opens. The practical consequence is that launch day will have a wave of new players claiming planets at the same time, and the players who already understand the build order will be the ones whose planets are growing while the new arrivals are still reading the interface. This guide is the head start.

Colonies: Your Second World and Beyond

When you are ready, a Colony Ship settles a second world, per the official site, and there are 15 kinds of planet to settle, from deserts to gas giants. A second colony doubles the mines and the hydrogen income, so the colony race is the first real leveling milestone — the player with two worlds out-produces the player with one. That is the sentence that should drive your first week: the colony is not a late-game luxury, it is the first milestone, and the race to it is the race that matters.

The 15 planet kinds are the choice that makes the second colony interesting. Deserts to gas giants is the range the official site gives, and it implies — without stating — that different planet kinds suit different things. This guide does not invent a per-kind bonus table, because none has been published. What can be said is that the choice exists, that it is permanent in the sense that a settled world is a settled world, and that the right move is to scout before you settle. A colony is a commitment of a Colony Ship and the time to build it; settling the wrong world, or settling a world next to a rival who will raid it, is a mistake that costs days.

The launch carousel describes colonising new planets across five galaxies of 499 systems, so the map is far bigger than one homeworld’s neighbourhood. That figure comes from the October 18 carousel, not from the official site — the site says one galaxy shared by every player — and this guide attributes it as such. Whichever figure is right, the practical point is the same: the map is big, the neighbourhood around your homeworld is only the beginning, and the long game is more worlds, more mines, and more hydrogen to move fleets between them.

Rival colonies are not marked for you. The official site says you have to find them, with Espionage Probes or by noticing where fleets come and go. That is a scouting game, and it is covered in Espionage and Finding Rival Colonies below — but the colony lesson is here: settle before your neighbours do, and scout before you settle. The player who settles second in a neighbourhood is the player who settles next to someone else’s fleet, and the player who settles without scouting is the player who finds out about the neighbour when the neighbour’s fleet arrives.

No Colony Ship cost, colony requirements, or per-kind bonuses have been published. The developers have not said what a Colony Ship costs, what you need before you can build one, or what each of the 15 planet kinds does differently, and this guide does not invent those numbers. The colony race is real — the second world doubles your mines — but the price of entry is unannounced. Check the live game on launch day before planning your first week around a cost you read here.

Fleets: From Scouts to Dreadnoughts

Ships are a set of answers, per the official site: Cruisers eat Scout swarms, Interceptors hunt Cruisers, Destroyers clear skirmishers and soften defences, and Dreadnoughts break planetary defences but cannot track Scouts. Each class has guns tuned against particular targets, so a fleet is not a pile of ships — it is a set of answers to the particular problems you expect to meet. Building one ship type is building one answer, and the game will ask you a different question.

The counter chain, as the official site states it, is a circle: Cruisers for Scout swarms, Interceptors for Cruisers, Destroyers for Interceptors, Dreadnoughts for planets. Every class has a predator and a prey, and the circle has no top — the Dreadnought, the biggest ship in the game, cannot track Scouts, and a swarm of the cheapest warship in the game can overwhelm it. That is the design lesson in one line: there is no ship that wins on its own, and the fleet that wins is the fleet whose answers match the enemy’s questions.

The support ships are as important as the warships, and they are the ones new players overlook. The U5 and U25 Transports move cargo. The Colony Ship settles new worlds. The Espionage Probe finds rival colonies. The Wreckage Collector harvests battle wreckage. The Solar Sail — listed at the Dock with no role stated on the site — is the one ship this guide cannot describe, because the developers have not said what it does. Do not plan around it. The other four support ships each have a clear job, and a fleet without them is a fleet that cannot settle, scout, haul, or harvest.

The Frigate deserves a paragraph of its own, because it is the raiding ship. It is built for catching cargo traffic, with a hold to carry home what it takes — which means raiding is not only about destroying things, it is about taking things. A raid that lands is production you did not have to wait for, and a Frigate is the ship that carries it home. The farming guide covers raiding as an income stream; the leveling point is that a fleet with Frigates grows faster than a fleet without them, because every raid is a mine you did not have to build.

Two practical notes on fleets. First, flights take real time, and a rival can watch a fleet coming — the game shows when it will arrive. That means a fleet is a commitment you cannot take back quietly, and the decision to launch is a decision to be seen. Second, no ship costs, build times, or fleet speeds have been published. This guide does not quote them. The roles are documented; the numbers are not.

Alliances: Four Fleets, One Arrival

Alliances turn fleets into joint operations, and the joint operation is the most powerful mechanic the official site documents. An alliance picks a target. Up to four fleets launch at different times so they land together, and the battle report credits everyone who did damage. Alliance chat and shared spy reports are the rest of it. That is the whole system in three sentences, and it is worth unpacking, because it is the mechanic that decides who wins the early game.

The four-fleet landing is a timing puzzle, not a firepower contest. Four fleets launch at different times — from different planets, at different distances, at different speeds — so that they arrive at the same moment. The defender sees four fleets coming and has to defend against all of them at once, and the attackers split the damage and share the credit. A solo fleet that arrives alone meets the full defense; four fleets that arrive together meet a defense divided four ways. The alliance that can coordinate four arrivals is the alliance that takes the target.

The credit rule matters as much as the timing. The battle report credits everyone who did damage, which means a small contributor still gets paid. An alliance is therefore not a hierarchy where the biggest fleet takes everything — it is a system where every participant’s contribution is recorded. That makes joining an alliance worth it even for a small player: your Scout swarm that screened the Dreadnoughts still counts, and the report says so.

The launch carousel adds that alliances are for shared intel and defense, and that they are optional. That last word is doing work: you do not have to join one. But the game’s mechanics reward the alliance that coordinates, and a solo player is a player whose fleets always arrive alone. The leveling advice is blunt — grow with an alliance behind you, not alone — because the four-fleet landing is the one mechanic in the game that a solo player cannot replicate, whatever their fleet is made of.

Espionage and Finding Rival Colonies

Every other player’s homeworld is on the chart. Their colonies you have to find, with Espionage Probes or by noticing where their fleets come and go. That is the official site’s scouting rule, and it is the rule that makes the galaxy a game of information rather than a game of firepower. Your homeworld is public. Your colonies are not. The player who finds your colonies first is the player who can raid them, and the player who cannot find them is the player who flies blind.

Espionage Probes are the tool, and they are built at the Dock alongside the warships. The site does not say what a probe costs, how long it takes to build, or what exactly it reports — and this guide does not invent those numbers. What is documented is the function: probes find colonies, and shared spy reports are part of what an alliance gives you. An alliance with shared spy reports is an alliance whose members all know where the rivals live, and that shared map is worth as much as any fleet.

The other scouting method is watching fleets. A rival’s fleet comes from somewhere, and where it comes from is a colony. Noticing where fleets come and go is free, it requires no probe, and it is the method that rewards a player who watches the starmap. The hydrogen line helps here, too: a fleet burning hydrogen shows on the line long before anyone sees it, so a big fleet is visible before it arrives — and its origin is a clue to where its owner’s colonies are. The player who watches the line knows where the fleets are going before they get there.

The practical advice is to scout before you settle and to keep scouting after you settle. A colony is a commitment, and the wrong neighbourhood is a commitment to a neighbour who will raid you. Probe the systems around a candidate world, watch the fleets that pass through, and settle where the traffic is thin and the neighbours are far. Then keep a probe or two in the fleet rotation, because a neighbourhood changes — a new colony appears, a new fleet starts flying, and the map you made on day one is out of date by day seven.

Wreckage and Moons

Every fight leaves something behind. Ships fire in rounds, and the battle report lists what each side brought, what it lost, what was looted, and the wreckage left floating for anyone with a Wreckage Collector. That is the official site’s combat economy in one sentence: the fight is not only about who wins, it is about what the winner — and anyone else with a Collector — can take from the wreckage. A battle is an income event, and the wreckage is the dividend.

And what is left can become a moon. A moon seed forms in big wreckage. Defend it while it grows, then build up to seven moon buildings on it, from the Mass Driver to the Slip Gate. The moon is the game’s long-term prize: a second base that grows out of a battle, defended while it grows, and built up with as many as seven buildings. The Mass Driver and the Slip Gate are the two buildings the site names — the first and the last of the seven — and the five in between are not named anywhere this guide could read. Do not plan around a building list that has not been published.

The moon mechanic changes how you think about big fights. A big fight is not only a risk — it is a moon seed, and a moon seed is a base. The player who wins a big fight and collects the wreckage is the player who grows a moon; the player who loses a big fight has still created a moon seed that someone else can defend and grow. The farming guide covers wreckage as an income stream; the leveling point is that moons are the endgame of the wreckage economy, and the players who grow them will be the players with the most buildings, the most options, and the most to defend.

One more thing the carousel documents: temporary pirates and trader convoys appear in open space. They are moving targets, worth watching for, and they are the only part of the game that is explicitly temporary — they appear, they can be caught, and they go away. No spawn rates or rewards have been published for them. Watch for them, and do not plan around them.

Hydrogen: The Bottleneck That Decides Wars

Hydrogen is the commonest thing in the universe and still the thing every colony runs short of. Every fleet burns it, and a fleet burning hydrogen shows on the line long before anyone sees it. That is the official site’s hydrogen rule, and it is the rule that governs the whole game. Hydrogen is the fuel, the bottleneck, and the warning system, all at once — and the player who manages it best is the player who can move when others cannot.

The bottleneck is structural. Every colony runs short of hydrogen, because every fleet burns it, and every flight is a spend from a budget that refills slowly. Metal and silicon are the building currencies; hydrogen is the movement currency. A player who spends hydrogen on flights they do not need is a player whose fleets stay home when they are needed. A player who hoards hydrogen and never flies is a player whose fleets never raid, never scout, and never land together with their alliance. The balance is the game: fly when it matters, stay home when it does not, and never let the tank hit empty on the day your alliance lands four fleets on one target.

The warning system is the other half of the rule. A fleet burning hydrogen shows on the line long before anyone sees it — which means your fleets are visible too. Every launch is a signal, and every signal can be read. The player who launches a fleet is telling the galaxy where they are going, and the player who watches the line is the player who knows. That is why the site’s line about rivals watching your fleet coming matters: the question is whether they are awake, and the answer depends on whether they are watching the line.

The farming guide covers hydrogen production and management in detail. The leveling point is simpler: hydrogen is the constraint that decides whether your growth plan works. Mines without hydrogen are mines that cannot be defended. Fleets without hydrogen are fleets that cannot fly. Colonies without hydrogen are colonies that cannot be supplied. Keep the Extractor working, keep the tank from emptying, and spend hydrogen like it is the scarcest thing you own — because, per the official site, it is.

The Launch Race: Your First Week

Angstrom opens Friday, November 13, 2026, at 3pm UK, and everyone starts together. That sentence is the whole launch race: a single start time, a single galaxy, and every empire beginning on the same day. The players who grow fastest in the first week will not be the ones who play the most hours — they will be the ones whose queues never sit idle, whose power comes before their mines, and whose second colony lands before their neighbours’ second colony does. The plan below is built for exactly that.

Before launch: read the site, join the community, and be ready at 3pm UK. The official site is the whole manual — three mines, a Solar Plant, a Technology Lab, a Dock, and a Colony Ship — and the launch graphic is the whole schedule: Friday, November 13, at 3pm UK, free in your browser. Join the Discord, the Reddit, or the X account linked from the official site, because the two-developer team and the player-vote system mean the community is where changes are discussed before they go live. If you played the beta, remember that the beta universe stays open after launch — your beta progress is not the launch, and the launch is a fresh start where everyone begins on the same day.

Day one: mines, power, lab, dock — in that order. Start with the three mines, get the Solar Plant up early, and open the Technology Lab and the Dock as soon as you can. Keep the lab working and the dock busy from the first hour. Do not spend your first day building ships before your mines are running — a fleet with no economy behind it is a fleet that cannot be replaced. And do not let a finished upgrade sit idle while you sleep on the first night: queue the long job before bed, because the first night’s queue is the first day’s growth.

Days two to four: push the mines, research, and build the first ships. The early game is a queue-management game, and the queue is the plan. Push the mine that feeds what you are building next, keep the lab researching, and build the ships that answer the problems you expect — Scouts to screen, Cruisers to eat them, a Frigate or two for the first raids. Start probing the systems around your homeworld, because the colony decision is coming and the scouting should be done before it, not after.

First weekend: settle the second colony. The colony race is the first real leveling milestone, and the player with two worlds out-produces the player with one. Scout before you settle, settle before your neighbours do, and remember that rival colonies have to be found — so the world you pick should be one you have probed, not one you guessed at. A second colony doubles the mines and the hydrogen income, and the doubling is the compounding that separates the first week’s leaders from everyone else.

First week: join an alliance, and land together. The four-fleet landing is the mechanic a solo player cannot replicate, and the first week is when alliances form. Join one, share your spy reports, and be part of a landing — the report credits everyone who did damage, so even a small contribution counts. Grow with an alliance behind you, not alone, because the alliance that can land four fleets on one target is the alliance that takes the target.

After the first week: reassess from the live game. By then the launch will have happened, the first balance changes will have landed, and the community will have measured the things nobody has published — production rates, research times, ship costs, Exchange prices. This guide will be out of date the moment those numbers exist, and that is fine: a launch-watch guide’s job is to get you to launch day with a sound plan, not to pretend the numbers were known all along. Check the official site before planning around any figure you read here.

Common Mistakes

• Letting upgrades and research sit finished and idle while you are asleep, when they run on their own. Queue the long job before bed.
• Pushing mines without building the Solar Plant the mines need for power. Three mines that all need power, and a planet that cannot run them without it.
• Settling a second world without scouting, when rival colonies have to be found first. Probe the systems around a candidate world before you commit a Colony Ship.
• Building one ship type when each class is tuned against particular targets. A fleet is a set of answers, not a pile of ships — and the Dreadnought cannot track Scouts.
• Racing alone when an alliance can land four fleets on one target at the same time. The report credits everyone who did damage, so even a small contribution counts.
• Spending hydrogen on flights you do not need when every colony already runs short of it. A fleet with no fuel is a fleet that stays home.
• Planning trades around prices, rates or fees that have never been published for The Exchange. Check the live game on launch day before planning an empire around a trade.
• Treating the five-galaxies carousel figure as the official map size. The official site says one galaxy shared by every player; the five-galaxies-of-499-systems figure comes from the October 18 launch carousel, and this guide attributes it as such.

Patch State (as of November 11, 2026)

Newest launch material: November 11, 2026 — the countdown post: “2 days to go. Friday 13 November. Angstrom, the first full universe, opens at 3pm UK time. Free in your browser.” The launch-day post from November 9 reads: “Everyone starts from one world. On 13 November the first full universe opens, and every empire begins on the same day.”

November 6, 2026: the full-release graphic — “FULL RELEASE, Friday 13 November, 3pm UK time. Free in your browser. Everyone starts together.” — posted by the official account.

October 19, 2026: The Exchange revealed — “Everything has a price. Trade with the Trader, other players, or the Broker.” No rates, fees or price lists published.

October 18, 2026: the launch carousel — eight slides covering empire building, colonising across five galaxies of 499 systems, raiding, moons, alliances, pirates and trader convoys, and highscores. The carousel also describes the open beta, which the official site says stays open after launch.

Coming up: full release Friday, November 13, 2026, at 3pm UK, when Angstrom opens and sign-ups open to anyone. No post-launch patch date has been announced. Check the official site at hydrogenlinegame.com on launch day — the first post-launch changes will move numbers this guide cannot predict.

Related pages:

Leveling Time Planner Hydrogen Line Hydrogen Line Farming Guide

Frequently Asked Questions

Sources

Every fact in this guide carries its source. Launch and system facts come from the official site and the official launch material; the galaxy-size figure is attributed to the carousel it came from, and everything unpublished is flagged rather than filled in. Last checked November 11, 2026.

• Hydrogen Line official site (one planet, three mines, tech tree, ships, moons, beta terms)
• Hydrogen Line Instagram: full release Friday 13 November, 3pm UK (launch graphic, November 6, 2026)
• Hydrogen Line Instagram: launch countdown, Angstrom opens 3pm UK (November 11, 2026)
• Hydrogen Line Instagram: launch day, everyone starts from one world (November 9, 2026)
• Hydrogen Line Instagram: launch carousel, five galaxies of 499 systems, colonies, moons, alliances (October 18, 2026)
• Hydrogen Line Instagram: The Exchange, trade with the Trader, other players, or the Broker (October 19, 2026)
• MMODude: Hydrogen Line game page (Angstrom, November 13, 2026, 3:00 PM UK, no verified market)