The cryptid deck-building auto battler

Portentum Press Kit

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.

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Awards

Fact sheet

Developer: Snowfall Games
Publisher: Snowfall Games
Genre: Indie, Strategy
Modes: Online PvP (asynchronous), live tournaments
Platforms: Steam (Windows, Mac, Linux, Steam Deck)
Release: October 28, 2026 (Early Access)
Price: Free to play
Steam: View on Steam
Website: portentum.game
Press: Press inquiries

About

Every culture on Earth has a monster it swears is real. Portentum puts them all in one deck. You draft cryptids from around the world, build them into a warband, and send them into battles that play out on their own. Your job is everything that happens before the first die lands.

Features

Folklore from around the world

Mothman. Bigfoot. Nessie. The Chupacabra. The Yeti. The Kasai Rex. If somebody's uncle saw it in the woods in 1973, there's a good chance it's a card in Portentum. Every creature gets hand-painted art and its own way of wrecking the other side of the board.

A raccoon named Jimothy

Every other cryptid in Portentum has spent centuries avoiding cameras. Jimothy walked down a Seattle street and let seven million people watch.

Deck builder

Before a run, build a deck of 30 cryptids and mushrooms. Every cryptid brings its own ability: deal damage, heal, summon a minion, bend the dice, and plenty that do not fit any of those. Abilities can trigger upon a roll of the dice, another ally taking damage, or an enemy healing an ally. There are endless combinations and broken strategies to be discovered.

Shop, build, battle

The shop deals a hand from your selected deck for that run. Spend coins to play cards from your hand, build a warband, and then send it to fight. Battles roll dice, resolve abilities, and continue to run until one warband remains. Win ten rounds to win the run. Lose five, and you are out.

Forever evolving meta

Keep playing and you earn card packs. New cards mean new decks to try, and the broken combo you have been looking for might be sitting in the next one. Every warband you build gets saved and sent out to fight other players, so what you build changes what everyone else runs into.