Calcium Chaos

A twin-stick roguelite shooter with toasters and robot chickens

Lunch Money Games · Published by Spelkollektivet · Released Nov 8, 2024

Reviews: Very Positive; 94% of 52
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 1 year ago; Apr 22, 2025
Minimum PC: GPU with at least 2 GB of…; 4 GB RAM · 10 GB disk; Full requirements

What is Calcium Chaos?

You fight to stop a necromancer in this top-down action roguelite set in a land overrun by skeletons. You combine weapons and battle through procedurally generated levels, then buy upgrades and decorate your train base between missions.

For you if...

+you want local co-op for playing with family or friends
+you prefer lighthearted humor to a grim atmosphere

Not for you if...

−you dislike juggling movement and aiming during combat

What players say

94% of 52 reviews are positive

Players praise the soundtrack and cartoon art style. More recent negative reviews describe the gameplay as basic or uninteresting.

Screenshots and trailer

Calcium Chaos system requirements

Minimum: GPU with at least 2 GB of…, 4 GB RAM, 10 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 7, 8, 10, 11
Processor: i3 or equivalent
Graphics: GPU with at least 2 GB of VRAM
Memory: 4 GB RAM
Storage: 10 GB available space

Does Calcium Chaos have co-op or multiplayer?

Yes: co-op split-screen. It also has a single-player mode. With Remote Play Together, one copy is enough to play the local modes online with friends.

Does Calcium Chaos run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Full controller support
Platforms: Windows, macOS
Achievements: 21
Steam features: Cloud saves, Family Sharing
Languages: Full audio: English.

Does Calcium Chaos 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 28, 2026. How to filter AI games on Steam