Geneforge 1 - Mutagen
Released Feb 2021
Unique, truly open-ended fantasy adventure in a strange, new world. Use battle or cunning to change the world, served by your own army of custom-made mutant monsters. Over 80 zones to explore and 50+ hours of gameplay. Multitudes of skills, abilities, factions, treasures, and servants to create.
94% positive · 438 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence
Where to buy
Steam $19.99
Can't confirm — worth a look
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Evaluation
Geneforge 1 – Mutagen launched on February 24, 2021 as a complete remaster of the 2001 original. It shipped as a finished product with a single DLC — a hintbook and bonus content pack — released on the same day as the game itself. No additional DLC has been announced or listed on the store since launch.
Spiderweb Software has continued to maintain the game with patches: a notable update on October 1, 2025 (v1.0.3) completely reworked how the game renders and added accessibility features like full-screen scaling. This shows the developer is still engaged with the title, but these are polish and maintenance updates, not new content additions.
The developer's attention has moved on to subsequent games in their catalog. In February 2024 they announced Geneforge 2 – Infestation (released March 27, 2024), a remaster of the next entry in the series. By September 2024 they had moved on further, launching a Kickstarter for Avernum 4: Greed and Glory, which released on October 22, 2025. None of these announcements reference any future content additions planned for Geneforge 1 – Mutagen.
The game launched as a self-contained, complete experience and has received no post-launch content expansions. All signs point to this being a finished product.
Evidence
The only DLC — a hintbook and bonus pack — was released on launch day. No unreleased DLC is listed on the store.
Store description presents Geneforge 1 – Mutagen as a complete remaster of the 2001 original, with no mention of planned post-launch content or expansions.
Content
1 of 1 released · no outstanding content
Media
Details
Developer
Publisher
Spiderweb Software
Achievements
30
Platform
Windows, macOS
Controller
—
Steam Deck
Playable
Players
Single-player
About this game
Geneforge 1 – Mutagen is a unique, truly open-ended fantasy adventure in a strange, new world. You are one of the Shapers, wizards with the awesome power to create life. Want a tool, a trap, an army? You summon it into existence. You create mighty beasts, and they totally obey you. Usually.
At least, that's how it's supposed to be. You have been stranded on a forbidden island, full of the powerful, lost secrets of your people. Invaders are also here, trying to steal and master your knowledge. Race them for the awesome treasures hidden here. And destroy the thieves. Or join them.
Geneforge 1 – Mutagen offers unmatched freedom in how you play. Use magic or your deadly pets to crush your enemies. Or, use trickery, diplomacy, and stealth to win the game without ever attacking a foe. Choose between a host of rival factions or just destroy everything. Defeat the final boss, or switch sides and join him. Fight alone with blades, missiles, or magic, or create your own army of custom-made mutant monsters.
Geneforge is an epic fantasy adventure with over eighty zones to explore, 50+ hours of gameplay, and unmatched replayability. Choose from dozens of skills, abilities, and pets to reach a vast array of different endings. The coming rebellion will scorch your continent. Who will win? It will be up to you.
Geneforge 1 - Mutagen is a total remaster of our 2001 cult-classic Geneforge. It contains new areas, quests, characters, and dialogue, a redone interface and systems, and a complete reworking of every single thing to bring it into the modern era of gaming.
At least, that's how it's supposed to be. You have been stranded on a forbidden island, full of the powerful, lost secrets of your people. Invaders are also here, trying to steal and master your knowledge. Race them for the awesome treasures hidden here. And destroy the thieves. Or join them.
Geneforge 1 – Mutagen offers unmatched freedom in how you play. Use magic or your deadly pets to crush your enemies. Or, use trickery, diplomacy, and stealth to win the game without ever attacking a foe. Choose between a host of rival factions or just destroy everything. Defeat the final boss, or switch sides and join him. Fight alone with blades, missiles, or magic, or create your own army of custom-made mutant monsters.
Geneforge is an epic fantasy adventure with over eighty zones to explore, 50+ hours of gameplay, and unmatched replayability. Choose from dozens of skills, abilities, and pets to reach a vast array of different endings. The coming rebellion will scorch your continent. Who will win? It will be up to you.
Geneforge 1 - Mutagen is a total remaster of our 2001 cult-classic Geneforge. It contains new areas, quests, characters, and dialogue, a redone interface and systems, and a complete reworking of every single thing to bring it into the modern era of gaming.
Are these done yet?
Last evaluated Jun 24, 2026
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