Cosmic Collapse

Physics-based planet-matching puzzle with missiles to clear crowded runs

Johan Peitz, Vav · Published by Apskeppet · Released Jan 11, 2024

Reviews: Very Positive; 99% of 126
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 2 years ago; Dec 7, 2023
Minimum PC: any; 1 GB RAM · 0.1 GB disk; Full requirements

What is Cosmic Collapse?

A single-player puzzle about tidying up the solar system. You bring matching planets together to create larger ones, use small planets to nudge bigger ones into position, and arrange chain reactions for higher scores.

For you if...

+you like unhurried puzzles built around simple rules

Not for you if...

−you want multiplayer competition rather than a solo challenge
−you prefer pieces that stay exactly where you place them

What players say

99% of 126 reviews are positive

Players praise the way planets bounce and settle, along with the pixel art and music. A recent reviewer finds the opening slow.

Screenshots and trailer

Cosmic Collapse system requirements

Minimum: any, 1 GB RAM, 0.1 GB of disk space.

As published by the developer.

Can my PC run Cosmic Collapse?

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Minimum

OS: 7
Processor: 700 MHz
Graphics: any card
Memory: 1 GB RAM
Storage: 50 MB available space

Does Cosmic Collapse have co-op or multiplayer?

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

Single-player

Does Cosmic Collapse run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

Sometimes shows mouse, keyboard or non-Deck controller icons
All functionality is accessible with the default controller configuration
In-game text is legible on Steam Deck
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows, macOS
Steam features: Family Sharing
Languages: Text only: English.

Does Cosmic Collapse 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