Fully AI generated game unveiled on Steam

Name: Fully AI generated game unveiled on Steam
Brand: Fully
Rating: 4 (1 reviews)

Cristina Joy Valerio December 13, 2025 · 1 min read

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There is a game that is said to be created 100% by artificial intelligence (AI) on Steam called Codex Mortis.

Codex Mortis, an action roguelike with necromantic bullet‑hell gameplay, is now available as a free demo on Steam.

Developers say every aspect from the code and level design to art, music, sound, and text are all generated using AI tools, including character visuals based on photos altered by AI of the team.

Players fight waves of undead enemies, collect magical items, and face an immortal boss while combining skills from five schools of dark magic. The demo supports solo and cooperative play.

A full release date and pricing have not yet been announced. You can find the Steam page here 14.

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Cristina Joy Valerio

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Cristina Joy D. Valerio, more commonly known as CJ to most, is a Multimedia Producer at Yugatech. She has an interest in the evolving world that is technology. Apart from that, she organizes D&D sessions, plays video games, and watches anime to kill time. CJ's alma mater is iACADEMY and graduated with a Bachelor of Science in Information Technology specializing in Web Development.

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