Gameplay trailer 1:14
Command the Frontier
In-game footage · Station development, fleet operations and space combat.
Your fleet. Your frontier.
01 Arrival
You start with one station on the edge of a persistent hex galaxy.
02 Your side
Choose your side.
Three factions race for the same frontier. In the game you choose once a round; here, fly for each of them in turn.
MeridianBuild tomorrow.A builder's faction: stronger station income, and light fleets that travel faster.Station incomeFaster light fleets
VantarTake the initiative.An aggressive faction, the Remnant: raids carry off more and fleets hit harder on the attack.Raids carry off moreMore firepower on the attack
KessariMake every move count.A patient faction, the Compact: cheaper buildings and a wider view of the frontier.Buildings cost lessA wider scan radius
Meridian Worth Defending
A Meridian commander wants a frontier that pays for itself. A rival can take whatever the fleets cannot reach in time, and every hull lost has to be built again.
03 Industry
Build what keeps you going.
Meridian stations earn a tenth more. Refineries, Mining Works and the mines on the fields next door feed the yards.
The home station grows its refineries, a light shipyard and Mining Works, and mining facilities rise beside the fields next door, drones shuttling from the fields.
04 Light yard
Keep the fleets full.
The light yard turns out scouts, corvettes, Disruptors and frigates, and at its eighth level the colony ship a stronghold needs.
The light shipyard's cradle forges a scout, a corvette, a Disruptor, a frigate and a colony ship.
05 Strike
Hit hard without the capitals.
A light fleet travels faster, and under a Fleet Admiral a fleet without capital ships fires harder. The Disruptor's ion charge breaks the camp's shield.
A light fleet with a Disruptor at its head strikes a Marauder camp; the Disruptor's ion charge breaks the camp's shield.
06 Ember Maw
Worth defending.
A colony ship aboard the assault takes the Ember Maw. It scores only while you hold it, and when a rival comes for it, the light fleets get there first.
The assault takes the Ember Maw over its gas giant; when a rival fleet comes for it, the light fleets reach it first and the rival breaks off.
07 Recovery
Nothing wasted.
After a fight your side survives, its Menders bring back up to half of each class it lost. The Maw's hold scores its Victory Point.
The Mender works among the frigates lost at the Maw, and two of the four are drawn up whole again.
Vantar The Return
A Vantar commander wants an offensive that pays for itself. Every expedition must come home with more than it cost, and a heavy return can still be caught.
03 Heavy yards
Steel first.
Every building raises the station. The Remnant builds the yards that make the hammer, and a plunder office to count what comes home.
The home station grows a heavy shipyard, a capital shipyard and a plunder office.
04 Hammer
Forge the hammer.
Destroyers, cruisers, bombers, battleships, a titan. An Anchor and a Latch join the line.
The heavy hulls on the cradle one after another: destroyer, cruiser, bomber, battleship, titan.
05 Expedition
Choose the target. Weigh the return.
Vantar raids carry off more, and a Veteran Strategist loads more than the holds should take. Haulers fly with the raid.
A raid on a Marauder camp with haulers in the fleet, ordered by hand.
06 Iron Crown
Break the garrison.
Vantar fleets hit harder on the attack, and the Anchor keeps the enemy in the fight. The colony ship aboard takes the Crown before its garrison regrows.
The assault on the Iron Crown: the Anchor keeps the enemy in the fight, the garrison breaks, and the colony ship aboard takes it.
07 Return
Make every return count.
After the fight the Latch claims the enemy's wrecks, and the loaded haulers head home.
The Latch claims the enemy's wrecks, and the loaded haulers head home.
Kessari Before the Border
A Kessari commander wants to know the ground before claiming it. A raid lands on whatever was left unprepared, and moving too early wastes the fleet.
03 Survey
See first.
Kessari stations see two hexes further and build for a tenth less. The relay beacon four hexes out and a Scanner Array widen the ring; probes watch past its edge.
The home station's sight widens hex by hex over the dim frontier: the relay beacon's hex is taken, a Scanner Array lands, and three probes go out past the edge.
04 Outposts
Claim what you have seen.
Outposts go up beside the moons past home's ground, a level for every load the haulers carry out. A dome adds crew; a mining colony, metal and crystal.
Haulers shuttle from home to two outposts beside the nearby moons, a Habitation Dome and a Mining Colony, each rising level by level.
05 Prepare
Ready before they come.
Weavers mine every attacker at the station, and under a Border Marshal their mines fire twice. An Aegis raises its barrier.
At home, three Weavers unfold their mines round the fortress and an Aegis raises its barrier.
06 The raid
Worth the wait.
A Vantar raid lands on the home. The mines fire twice before the first volley, the Aegis barrier takes the fire, and the station's guns break the raid.
A Vantar raid comes in on the home and breaks: the mines fire twice, the Aegis barrier takes its volleys and the station's guns finish it.
07 Rime Spire
Make every move count.
A stronghold's garrison is public, so the assault is planned: the fleet breaks the garrison, then the colony ship comes in and takes the Spire.
The strike force breaks the Rime Spire's public garrison, then a colony ship comes in and takes the Spire.
08 Your move
Your fleet. Your frontier.
Free on Windows
Get the alpha.
Setup installs Lunar Protocol for your Windows account, without administrator rights. When an update is out, the game fetches only what changed the next time you start it. You sign in inside the game.
- Version
- , released
- Download
- On disk
- Requires
- Windows 10 or 11, 64-bit
The alpha runs on Windows only. Download it on a Windows 10 or 11 PC.
LunarProtocolSetup.exe,
SHA-256
How to install
Download LunarProtocolSetup.exe.
If your browser says the file isn’t commonly downloaded, keep it. In Chrome, choose “Keep”. In Edge, choose “…”, then “Keep”, “Show more” and “Keep anyway”.
Open it.
If Windows shows “Windows protected your PC”, choose “More info”, then “Run anyway”. The alpha isn’t code-signed yet, so Windows doesn’t recognise its publisher. It asks only this once.
Setup downloads and installs the game, then adds Lunar Protocol to the Start menu and your desktop.
Start Lunar Protocol and sign in.
To remove the game, uninstall Lunar Protocol from Installed apps in Windows Settings.
What’s new in
See it in action
The frontier is waiting.
From the first station upgrade to a fleet engagement. Take a closer look at Lunar Protocol.
Cinematic fleet reveal 1:13
Beyond the Last Beacon
Cinematic asset showcase · The original eleven ship designs.
Stay in orbit
Follow the frontier.
Follow development, discover new ships and stay up to date with Lunar Protocol.
Your fleet. Your frontier.
Coming to Steam