Codex Mortis

    Players cast dark magic and raise undead armies in a bullet hell, solo or in co-op.

    Developer unknown

    Playing together

    Online co-op
    1 source
    Online multiplayer
    1 source
    Players in online co-op
    1 source
    Local co-op
    1 source
    Not known yet
    Online versus, Players online, Best with, How co-op works, Crossplay, Multiplayer through mods, One copy is enough, Free to play, Plays in browser, Demo, Playtest, Early access

    Hover, focus or tap a fact to see where it came from.

    How you talk

    Not known yet
    Plays without voice or typing, Wordless tools, Public matchmaking, Friendly with strangers

    About the game

    In Codex Mortis, Death is your weapon. Mix five schools of dark magic, unleash devastating spell synergies, and raise undead armies in this necromantic bullet hell. Infinite builds, solo or co-op – embrace the forbidden and dominate. 100% AI-driven development.
    From IGDB

    Screenshots

    Why we rate it this way

    • 78% positive from 109 Steam reviews.
    • Critics rate it 40/100 from 1 reviews.
    Steam, checked 1 Nov 2026Num reviews: 1Review score: 6Review score desc: Mostly PositiveTotal positive: 85Total negative: 24Total reviews: 109{"num_reviews":1,"review_score":6,"review_score_desc":"Mostly Positive","total_positive":85,"total_negative":24,"total_reviews":109}IGDB, checked 1 Nov 2026Id: 380942Name: Codex MortisUrl: https://www.igdb.com/games/codex-mortisCreated at: 1765299204First release date: 1790208000Total rating: 40Total rating count: 1Aggregated rating: 40Aggregated rating count: 1Game status: 4Release dates: [{"id":969507,"date":1790208000,"human":"Sep 24, 2026","status":{"id":6,"name":"Full Release"}},{"id":969506,"date":1790208000,"human":"Sep 24, 2026","status":{"id":6,"name":"Full Release"}},{"id":890676,"date":1774483200,"human":"Mar 26, 2026","status":{"id":3,"name":"Early Access"}},{"id":893687,"date":1774483200,"human":"Mar 26, 2026","status":{"id":3,"name":"Early Access"}}]Game type: {"id":0,"type":"Main Game"}{"id":380942,"name":"Codex Mortis","url":"https://www.igdb.com/games/codex-mortis","created_at":1765299204,"first_release_date":1790208000,"total_rating":40,"total_rating_count":1,"aggregated_rating":40,"aggregated_rating_count":1,"game_status":4,"release_dates":[{"id":969507,"date":1790208000,"human":"Sep 24, 2026","status":{"id":6,"name":"Full Release"}},{"id":969506,"date":1790208000,"human":"Sep 24, 2026","status":{"id":6,"name":"Full Release"}},{"id":890676,"date":1774483200,"human":"Mar 26, 2026","status":{"id":3,"name":"Early Access"}},{"id":893687,"date":1774483200,"human":"Mar 26, 2026","status":{"id":3,"name":"Early Access"}}],"game_type":{"id":0,"type":"Main Game"}}

    Sources

    First listed 1 Nov 2026. Updated 1 Nov 2026.