IMHO.

Games like Portentum

If Portentum is your kind of game, the closest matches are Slay Sean, Save The World!, FLASK and God Complex — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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About Portentum: The cryptid deck-building auto battler. Hunt for broken combos using cryptids from around the world 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.

StrategyIndieFree To PlayFree to playWindows · macOS · Linuxby Snowfall Games
Portentum — Steam game cover

Players who liked Portentum also play

Steam players who put hours into Portentum also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. Slay Sean, Save The World!

    WHY THIS

    Top pick for Portentum fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Portentum.

    A comic-book auto-battler where the Greek gods brawl. Draft your pantheon, fuse skills into game-breaking combos, and crush real players' ghost armies to climb from Mortal to Olympian. Rebuild your board every round. Then slay Sean and save the world.

    2026StrategyIndieCasualSteam ↗
  2. FLASK

    WHY THIS

    Second-strongest match for Portentum fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Portentum.

    FLASK is a roguelike autobattler about alchemical greed on the new frontier. Build unstoppable homunculi, barter with mutated merchants, and slay hordes of monsters to harvest their valuable blood. It's time to get bloody... Bloody rich!

    StrategySteam ↗
  3. God Complex

    WHY THIS

    Third-strongest match for Portentum fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Portentum.

    An async autobattler of rival gods. Raise a civilization from mud, teach it your universe's laws, and lay siege to the god next door — their world against yours, one bell at a time.

    2026StrategyIndieSteam ↗
  4. Vixens of Valor

    WHY THIS

    Ranked #4 for Portentum fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Portentum.

    Vixens of Valor is a dark-fantasy trading card game where the cards are truly yours. Spend Ember, command your Vixens under a Hero of your choosing, and out-duel rivals online. Collect, trade, and chase rare foils and alternate art across evolving seasons — beginning with Season 1: Descent.

    StrategyCasualSteam ↗
  5. Fighting Rogue

    WHY THIS

    Ranked #5 for Portentum fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Portentum.

    As a sect champion, fight for forbidden scrolls in the Martial Arts Tournament. Master signature techniques, synergize martial manuals, and wield divine weapons to craft your unique style. Overcome relentless rivals in evolving battles—achieve legendary glory in one decisive clash!

    StrategyIndieSteam ↗
  6. Down with the Ship

    WHY THIS

    Ranked #6 for Portentum fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Portentum.

    Strategic auto battler where you design a heavily-armed spaceship. Draft 200+ items, outfit your hull, and unleash it in async PvP. Blend captains and factions for absurd combos and galactic domination. Roll, buy, place, pray.

    2026StrategyIndieEarly Access13.49 USDDeck PlayableSteam ↗
  7. The Bazaar

    WHY THIS

    Ranked #7 for Portentum fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Portentum.

    The Bazaar is a fast-paced multiplayer Roguelike where every run is a new puzzle. Choose from unique heroes, uncover powerful combos, and outwit your opponents in a dynamic, ever-changing marketplace. Play at your own pace while discovering endless ways to win.

    2025Strategy19.99 USDDeck VerifiedSteam ↗
  8. Stash: A Card Looter

    WHY THIS

    Ranked #8 for Portentum fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Portentum.

    Embark on a unique drafting adventure with an endless array of randomized cards inspired by classical ARPG-Loot. Transform your one-of-a-kind loot into powerful battle tactics! Take on enemy squads drafted by real players in a post-human world teeming with beasty conflicts.

    2025Strategy5.99 USDDeck PlayableSteam ↗

Frequently asked about Portentum

Is Portentum free to play?
Yes — Portentum is a free-to-play title on Steam. You can install and play it without buying anything, though some games include optional in-app purchases.
Does Portentum have multiplayer or co-op?
Yes — Portentum supports multi-player play according to its Steam store listing (Multi-player, Cross-Platform Multiplayer, Online PvP).
What games are most similar to Portentum?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Portentum are Slay Sean, Save The World!, FLASK, God Complex.
Who developed Portentum?
Portentum was developed by Snowfall Games.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Portentum.

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8 Games Like Portentum — Ranked for 2026 · imho.run