Once Upon a Galaxy

Card autobattler with crews drawn from myths and fairy tales

Million Dreams Games · Released Jul 29, 2025

Third-party account required

Reviews: Mostly Positive; 78% of 782
Recent reviews: Mostly Negative; 35% of 14 in 30 days
Players: 73; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 21 hours ago; Oct 27, 2026
Minimum PC: 2GB VRAM; 4 GB RAM · 1 GB disk; Full requirements

What is Once Upon a Galaxy?

This free-to-play card autobattler takes place across a galaxy. You choose a captain, customize your card pool, then recruit characters, cast spells, and position your crew for automatic battles, collecting upgrades between rounds. Standard matches pit you against other players’ saved lineups without turn timers, while six-player live lobbies let you compete with friends.

For you if...

+you enjoy combining character abilities, factions, and treasure effects
+you want to alternate between computer and mobile play

Not for you if...

−you want direct control over attacks during combat
−you dislike randomness in card draws and match outcomes

What players say

78% of 782 reviews are positive · 35% of 14 in the last 30 days

Players praise the quick matches and ease of getting started. Recent complaints focus on overpowered new captains and card unlocks becoming too slow or expensive, though some players still consider the monetization reasonable.

Screenshots and trailer

Once Upon a Galaxy system requirements

Minimum: 2GB VRAM, 4 GB RAM, 1 GB of disk space.

As published by the developer.

Can my PC run Once Upon a Galaxy?

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Minimum

OS: Windows 10
Processor: 2.3 GHz
Graphics: 2GB VRAM, OpenGL 3.3 or Vulkan 1.1
Memory: 4 GB RAM
Storage: 1 GB available space

Does Once Upon a Galaxy have co-op or multiplayer?

Yes: PvP online. It also has a single-player mode. Crossplay with other platforms is declared.

Does Once Upon a Galaxy run on Steam Deck?

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

Some text entry requires manually opening the on-screen keyboard
Some in-game text is small and may be hard to read
All functionality is accessible with the default controller configuration
Shows Steam Deck controller icons
Default graphics settings perform well on Steam Deck
Singleplayer gameplay requires active internet connection

PC version details

DRM: None declared on Steam
Third-party account: Microsoft Playfab (Supports Linking to Steam Account)
Controller: Keyboard and mouse
Platforms: Windows, macOS
Steam features: Family Sharing, In-app purchases
Languages: Text only: English.

Does Once Upon a Galaxy 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