Enemy On Board

Online social deduction with hidden aliens and real-time spaceship combat

Windwalk Games · Released May 8, 2020 · Early Access

Early Access, no updates for over a year

Reviews: Mostly Positive; 72% of 1,716
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 5 years ago; Jan 15, 2021
Minimum PC: Any dedicated GPU; 4 GB RAM · 1 GB disk; Full requirements

What is Enemy On Board?

This free-to-play online game pits six crew members against two disguised aliens aboard a spaceship. In each match, crew members repair generators to maintain communications, scavenge weapons, and hunt suspected aliens, while the aliens deceive the crew and gather points to transform. The last team standing wins.

For you if...

+you enjoy coordinating with teammates over built-in voice chat
+you like choosing characters with different abilities and perks

Not for you if...

−you want to play alone rather than coordinate with teammates
−you prefer discussing suspicions without fighting other players

What players say

72% of 1,716 reviews are positive

Players praise the short matches and the mix of deception with action combat. Recent reviews report that the servers are offline and players cannot connect, alongside complaints about an inactive community.

Screenshots and trailer

Enemy On Board system requirements

Minimum: Any dedicated GPU, 4 GB RAM, 1 GB of disk space.

As published by the developer.

Can my PC run Enemy On Board?

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Minimum

OS: Windows 7+
Processor: Any dual core processor
Graphics: Any dedicated GPU
Memory: 4 GB RAM
Storage: 1 GB available space
DirectX: Version 11

Does Enemy On Board have co-op or multiplayer?

Yes: co-op online; PvP online. There is no single-player mode.

Does Enemy On Board run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Steam features: Family Sharing
Languages: Full audio: English.

Does Enemy On Board use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam