FATAL ERROR - RTS

Real-time strategy with base building in a virus-infected computer

Jeffrey Lu, Freddy Lu · Released Sep 27, 2021 · Early Access

Reviews: Very Positive; 95% of 66
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 11 months ago; Nov 15, 2025
Minimum PC: 512 MB memory; 1 GB RAM · 0.3 GB disk; Full requirements

What is FATAL ERROR - RTS?

This top-down, single-player RTS is in Early Access. You control an anti-virus construct defending the Mainframe, building bases, commanding units, and advancing through research trees in a story campaign or skirmish battles. Skirmishes let you adjust AI difficulty and team composition, and a map editor lets you create custom battlefields.

For you if...

+you like fast-paced battles inspired by classic RTS games

Not for you if...

−you want multiplayer battles against other people

What players say

95% of 66 reviews are positive

Players praise the retro presentation and campaign. Some describe a steep learning curve, while individual complaints cite poor unit pathfinding and a campaign difficulty spike. A later review reports Linux windowed-mode problems that prevent access to settings.

Screenshots and trailer

FATAL ERROR - RTS system requirements

Minimum: 512 MB memory, 1 GB RAM, 0.3 GB of disk space.

As published by the developer.

Can my PC run FATAL ERROR - RTS?

Tell us your graphics card once and every game page will answer this for you.

Set up my PC →

Minimum

OS: 11 / 10 / 8 / 7
Processor: 1.4 GHz
Graphics: 512 MB video memory
Memory: 1 GB RAM
Storage: 300 MB available space
DirectX: Version 9.0c

Does FATAL ERROR - RTS have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does FATAL ERROR - RTS 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: Cloud saves, Family Sharing
Languages: Full audio: English.

Does FATAL ERROR - RTS 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