# CODEX MORTIS
> Survivors-like deckbuilder with mutating spells, ten schools of dark magic and up to 4-player co-op.
- URL: https://store.steampowered.com/app/4084120/
- Visit (tracked): https://promoteindex.com/go/codex-mortis
- Category: game
- Built with: unspecified
- Pricing: paid
- Game availability: playable (maker-reported)
- Game AI use: ai-assisted
- Game platforms: windows, linux
- Steam: https://promoteindex.com/go/codex-mortis?placement=games&target=steam
- Votes: 0
- Listed: 2026-10-18
- Tags: deckbuilder, survivors-like, bullet-hell, co-op, isometric, steam
Curated listing by PromoteIndex, not submitted by the maker. Makers can claim or request removal.

From the Steam page: "A survivors-like deckbuilder with mutating spells and ten schools of dark magic. Build devastating combos, battle through fourteen cursed levels, and spend earned points on booster packs. Survive the isometric bullet hell solo, in local co-op, or online with up to four players."

By GROLAF, published by CRUNCHFEST. Released Sep 24, 2026. $3.99 on Steam. Windows and Linux.

AI use, in the developer's own Steam disclosure: "AI is used for entire code of the game, text, arts, sounds and music."
Listing: https://promoteindex.com/p/codex-mortis

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