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Mission briefing

What you are doing in Lunar Base Alpha

Blood Moon Horror is a 1-8 player co-op survival horror game set inside Lunar Base Alpha after the Red Horizon incident. You play as Ashlight Recovery — an investigation and extraction team sent in after quarantine.

Core mission loop

  • Explore sealed sectors for supplies, access points, and NovaTech evidence
  • Restore failing electrical systems through co-op puzzle objectives
  • Evade corrupted machine-flesh threats that react to sound, light, movement, and power
  • Reach extraction before the base locks down again

Important constraints

  • No traditional weapons — hide, run, distract, and outsmart threats
  • Early Access — features, balance, and content continue to expand
  • Platform: Windows PC on Steam (Unreal Engine 5)
  • Current public build path: Update 0.6 (28 Feb 2026)

On your first map load, the in-game Operator Guide explains controls, objectives, pinging, and puzzle basics. Re-open it any time from the pause menu.

Input

Controls & input

Default bindings are shown in-game. Open Pause → Settings → Controls to review or remap keys and controller buttons.

Action Keyboard & mouse Controller Notes
Move WASD Left stick First-person movement through Lunar Base Alpha
Look / aim Mouse Right stick Camera and interaction targeting
Interact Default: E Face button (see in-game Controls) Terminals, doors, pickups, puzzle inputs
Sprint Hold Shift Shoulder / stick click (see in-game) Noisier movement — threats may react
Crouch Ctrl See in-game Controls Quieter movement in tight corridors
Flashlight See in-game Controls See in-game Controls Light helps navigation but can draw attention
Ping / mark See in-game Controls See in-game Controls Silent world markers for squad callouts
Pause / menu Esc Menu button Settings, Operator Guide, leave session
Voice chat Configurable Configurable Proximity voice; toggle and input in Settings (Update 0.5+)

Controller support is included. For Steam Deck labels and the latest supported-device notes, use the Steam store page as the source of truth.

Survival basics

Gameplay fundamentals

Exploration

  • Search corridors, maintenance bays, and sealed rooms for clues and objectives
  • Collect NovaTech documents, logs, and recordings for lore and progression
  • Use flashlights, emergency lighting, and audio cues to read the environment

Threats

  • Station machines have been rewritten into hostile machine-flesh frames
  • Threats hunt, chase, and search using sound, movement, light, and power spikes
  • Combat is not the answer — positioning, silence, and squad coordination matter

Objectives

  • Restore power routes through switch boxes and electrical terminals
  • Complete run objectives as a squad before quarantine escalates
  • Failed puzzles can create sparks, alerts, and time pressure for everyone

Extraction

  • Recover evidence and reach the extraction point together when possible
  • Spectator flow is supported if an operator is downed mid-run
  • Late-join improvements are active in the current Early Access path

Read the co-op systems overview for a deeper look at mission flow.

Squad comms

Co-op & voice chat

  • Player count: 1-8 operators — solo is supported, but co-op is the intended experience
  • Modes: Online co-op and LAN co-op
  • Proximity voice: Loud callouts travel farther than whispers; sound is part of the horror
  • Voice toggle: Voice settings can be adjusted in-game (Update 0.5+)
  • Squad finder: Use Discord or r/BloodMoonHorror to find players

Steam achievements, cloud saves, stats, and leaderboards are tied to your Steam account. There is no separate public stats website — use Steam community profiles for personal records.

Electrical systems

Live puzzle types

Update 0.6 moved active puzzle play into readable world-space terminals. Puzzle types in the current public path:

  • Electric Switch — coordinate switch toggles to align mechanical dials
  • Circuit Breaker — route power through breaker panels under pressure
  • Lights Out — restore lighting routes while visibility is limited
  • Circuit Trace — trace failing circuits with squad callouts
  • Circuit Reroute — reroute power paths before systems overload

Puzzle failures can attract threats, waste time, and stress the whole squad — communicate before you flip a switch.

Hardware

System requirements

Blood Moon Horror targets Windows PC on Steam. Verify the latest specs on Steam before purchase.

Minimum

  • OS: Windows 10/11
  • Processor: Intel Core i5-4590 / AMD FX-8350
  • Memory: 8 GB RAM
  • Graphics: NVIDIA GTX 960 / AMD Radeon R9 280
  • DirectX: Version 11
  • Network: Broadband Internet connection
  • Storage: 10 GB available space
  • Notes: 60 FPS for Medium settings (with no upscaling)

Recommended

  • OS: Windows 10/11
  • Processor: Intel Core i7-8700K / AMD Ryzen 5 3600
  • Memory: 16 GB RAM
  • Graphics: NVIDIA GTX 1070 / AMD RX 580
  • DirectX: Version 11
  • Network: Broadband Internet connection
  • Storage: 10 GB available space
  • Notes: 60 FPS for High settings (with no upscaling)
Need help?

Support, FAQ & related pages

Player support

  • Support Center — troubleshooting and bug report template
  • FAQ — common Steam, co-op, and press questions
  • Contact — email support and feedback
  • Discord — fastest bug reports and squad coordination

Official updates & safety

For useful bug reports, include build version, platform, host/client role, player count, map sector, reproduction steps, and clips or screenshots when possible.