Sat. Mar 28th, 2026

AI-Created Roguelike “Codex Mortis” Launches on Steam, Drawing Mixed Reviews

“Codex Mortis” stands as a notable example of the capabilities of artificial intelligence technologies in game development.

This roguelike game recently debuted on PC via Steam. Its most remarkable characteristic is the developer’s assertion that it was “100% developed using AI.”

Indeed, every element of the game—including its visuals, underlying game code, narrative text, musical compositions, and sound effects—was entirely generated by artificial intelligence.

Codex Mortis is described as a “necromantic survival bullet hell, in which you command forbidden powers of death against relentless armies of the undead.”

Initial player feedback for “Codex Mortis” on Steam has been “mixed.” Players frequently point out issues with the user interface and voice concerns about the project’s overall quality. Despite these criticisms, a segment of the gaming community has found a unique charm, commenting that “for AI-slop, it’s pretty cool.”

By Artemius Grimthorne

Artemius Grimthorne Independent journalist based in Manchester, covering the intersection of technology and society. Over seven years investigating cyber threats, scientific breakthroughs and their impact on daily life. Started as a technical consultant before transitioning to journalism, specializing in digital security investigations.

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