Build your stronghold.
Develop your station, upgrade its infrastructure and establish the foundation for your fleet.
Real-time space strategy
LUNAR PROTOCOL
Your fleet. Your frontier.
Build your stronghold, assemble your fleet and expand across a contested frontier. Develop your station, commit your forces and watch your battles unfold.
Coming to SteamBuild. Assemble. Expand.
The game
Command the frontier.
A stronghold to build. A fleet to forge. A frontier to make your own.
Forge your fleet.
Construct ships, assemble your forces and choose the fleet you commit to each operation.
Command the frontier.
Establish outposts, secure resources and extend your reach across the sector.
Structure designs
The foundations of your frontier.
Explore the stations, outposts and industrial structures that give the frontier its shape.
Meet the fleet
Every ship has a role.
From scouts and strike craft to carriers and siege ships, explore the fleet designs shaping Lunar Protocol.
Development build
Recovery tender
Mender
Recovers destroyed friendly hull after combat when its side survives.
View ship
Development build
View all 18 prepared designs
Development build
Development build
Development build
Development build
18 prepared ship designs. Specialist roles reflect the current development build.
Reconnaissance
Scout
Scanning, stealth veil and a false echo.
A closer look at the prepared ship design.
Armored strike
Bomber
Alternating torpedo ripple, dorsal point defense and thermal decoys.
A closer look at the prepared ship design.
Strike-wing command
Carrier
Fighter and interceptor launches through visible bays.
A closer look at the prepared ship design.
Siege fortress
Titan
Slow, deliberate motion and layered siege defenses.
A closer look at the prepared ship design.
Recovery tender
Mender
Recovers destroyed friendly hull after combat when its side survives.
Specialist role documented in the current development build.
Barrier escort
Aegis
Adds an initial protective barrier for its side.
Specialist role documented in the current development build.
Expedition / electronic support
Wayfarer
Electronic decoys and cargo-escort identity.
A closer look at the prepared ship design.
Settlement support
Colony
Survey beacon and protective habitat fields.
A closer look at the prepared ship design.
Interception
Patrol
Agile kinetic fire and fast banking.
A closer look at the prepared ship design.
Skirmishing
Corvette
Paired pulse fire and guided darts.
A closer look at the prepared ship design.
Fleet screening
Frigate
Missile interception and rocket volleys.
A closer look at the prepared ship design.
Beam suppression
Cruiser
Sustained and staggered bow lances.
A closer look at the prepared ship design.
Torpedo attack
Destroyer
Heavy torpedoes with staged ignition.
A closer look at the prepared ship design.
Rail artillery
Battleship
Charged rail broadside and piercing shots.
A closer look at the prepared ship design.
Ion attack
Disruptor
Ion fire is particularly effective against shields.
Specialist role documented in the current development build.
Minelayer
Weaver
Mines damage attackers when defending a station.
Specialist role documented in the current development build.
Interdiction platform
Anchor
Extends combat and prevents enemy retreats.
Specialist role documented in the current development build.
Boarding craft
Latch
Captures some destroyed enemy hull when its side survives.
Specialist role documented in the current development build.
See it in action
The frontier is waiting.
From the first station upgrade to a fleet engagement. Take a closer look at Lunar Protocol.
Gameplay trailer1:14
Command the Frontier
In-game footage · Station development, fleet operations and space combat.
Open videoCinematic fleet reveal1:13
Beyond the Last Beacon
Cinematic asset showcase · The original eleven ship designs.
Open videoIn-game captures
The frontier in play.
A closer look at the game, captured in Lunar Protocol.
Character designs
Faces of the frontier.
Meet some of the faces behind the fleets.
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
Stay in orbit
Follow the frontier.
Follow development, discover new ships and stay up to date with Lunar Protocol.