CosmoDreamer

Bullet hell shooter with customizable skills and item-powered magic attacks

あうとさいど · Released Oct 2, 2020

As of Oct 28, 2026: -40% right now, $4.79

Reviews: Very Positive; 99% of 145
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 2 weeks ago; Oct 7, 2026
Minimum PC: (R) HD 4300; 2 GB RAM · 1 GB disk; Full requirements

What is CosmoDreamer?

A top-down shooter about Mu Yumegiri’s journey across the universe after she sees her town’s children floating into the sky. You shoot enemies, weave through bullet patterns, and clear stages one at a time to unlock the next.

For you if...

+you enjoy cute anime art and colorful pop-art visuals
+you like practicing individual stages before attempting arcade-style runs

Not for you if...

−you want cooperative play rather than a solo shooter

What players say

99% of 145 reviews are positive

Players praise the forgiving beginner settings, demanding higher difficulties, and music.

Screenshots and trailer

CosmoDreamer system requirements

Minimum: (R) HD 4300, 2 GB RAM, 1 GB of disk space.

As published by the developer.

Can my PC run CosmoDreamer?

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Minimum

OS: Windows10
Processor: Intel(R) Core(TM) i5-4210M CPU
Graphics: Intel(R) HD Graphics 4300
Memory: 2 GB RAM
Storage: 1 GB available space
DirectX: Version 9.0

Does CosmoDreamer have co-op or multiplayer?

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

Single-player

Does CosmoDreamer run on Steam Deck?

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

Default controller config not fully functional
Sometimes shows mouse, keyboard or non-Deck controller icons
In-game text is legible on Steam Deck
Default graphics settings perform well on Steam Deck
External controllers are not supported for the primary player

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 40
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, Japanese, Simplified Chinese, Traditional Chinese.

Does CosmoDreamer 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