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AI-Powered Codex Mortis: Dark Fantasy Game Launches Demo

12/15/2025

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Summary

Story summary

Codex Mortis, developed by Grolaf (Crunch Fest), is claimed to be built with AI and is available as a Steam demo.
The game is inspired by Vampire Survivors and includes AI-generated assets, code, and music.
It supports solo or co-op play and combines fast-paced combat with dark fantasy.
Grolaf faced challenges maintaining a consistent art style and character animations, relying on ChatGPT and custom shaders.
The project took three months.

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Story summary

Codex Mortis, developed by Grolaf (Crunch Fest), is claimed to be built with AI and is available as a Steam demo.
The game is inspired by Vampire Survivors and includes AI-generated assets, code, and music.
It supports solo or co-op play and combines fast-paced combat with dark fantasy.
Grolaf faced challenges maintaining a consistent art style and character animations, relying on ChatGPT and custom shaders.
The project took three months.