Geneforge 1 - Mutagen

Turn-based fantasy RPG with an army of creatures you create

Spiderweb Software · Released Feb 24, 2021

Reviews: Very Positive; 92% of 362
Recent reviews: Not enough recent
Players: 5; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 1 year ago; Oct 1, 2025
Minimum PC: 256 MB VRAM; 0.4 GB disk; Full requirements

What is Geneforge 1 - Mutagen?

This isometric RPG casts you as a Shaper wizard stranded on a forbidden island, where invaders seek your people's secrets. You explore its zones, choose faction allegiances, and fight with weapons or spells. Diplomacy, stealth, and trickery also let you finish without attacking anyone.

For you if...

+you enjoy old-school RPGs with tactical, turn-based battles
+you like experimenting with skills and character builds

Not for you if...

−you want cooperative play rather than a solo adventure

What players say

92% of 362 reviews are positive

Players praise the setting and story. Recurring complaints concern awkward interfaces, inventory management, and restrictive key remapping.

Screenshots and trailer

Geneforge 1 - Mutagen system requirements

Minimum: 256 MB VRAM, 0.4 GB of disk space.

As published by the developer.

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Minimum

OS: 64-bit Vista or Later
Processor: 1.2 GHZ
Graphics: 256 MB VRAM
Storage: 400 MB available space

Does Geneforge 1 - Mutagen have co-op or multiplayer?

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

Single-player

Does Geneforge 1 - Mutagen 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
Some text entry requires manually opening the on-screen keyboard
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
Achievements: 30
Steam features: Cloud saves, Family Sharing, Trading cards
Languages: Full audio: English.

Does Geneforge 1 - Mutagen 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