Portentum

    Players draft cryptid decks and send their warbands to fight other players' saved warbands.

    Snowfall Games

    Playing together

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

    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

    The cryptid deck-building auto battler. Hunt for broken combos with cryptids like Bigfoot, Jimothy, Nessie, and the Chupacabra. If somebody's uncle saw it in the woods in 1973, there's a good chance it's a card in Portentum.
    From Steam

    Screenshots

    Why we rate it this way

    • 82% positive from 28 Steam reviews.
    Steam, checked 1 Nov 2026Num reviews: 1Review score: 7Review score desc: PositiveTotal positive: 23Total negative: 5Total reviews: 28{"num_reviews":1,"review_score":7,"review_score_desc":"Positive","total_positive":23,"total_negative":5,"total_reviews":28}

    Sources

    First listed 1 Nov 2026. Updated 2 Nov 2026.