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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.

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Features
Languages:
Interface Full Audio Subtitles
English ✔ ✔ ✔
French ✔ ✔ ✔
Italian ✔ ✔ ✔
German ✔ ✔ ✔
Spanish - Spain ✔ ✔ ✔
Spanish - Latin America ✔ ✔ ✔
See all 6 supported languages
Awards

Content
Includes Interactive Elements

In-game purchases, Chance based in-game purchases, Online interactivity

Coming Soon To Early Access

The developers of this game intend to release as a work in progress, developing with the feedback of players.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“The core game is there. The mechanics work, the functionality is in, and it is fun to play today. What is left is visuals and quirks we are still polishing, and we would rather polish them with players than without them.

So we are putting Portentum in your hands as soon as we can. It is free, so there is nothing to wait for, and it is more fun to develop a game together with the people playing it.

Early Access also answers a question a player asked us in Discord: is this a one and done game, or are you going to keep adding to it? We plan to keep adding to it, and we would rather say so on the store page than bury it in a forum post.”

Approximately how long will this game be in Early Access?

“About a year. We are aiming to leave Early Access by the end of 2027.”

How is the full version planned to differ from the Early Access version?

“We have plenty of new cards and abilities we want to add to the pool as we see how the meta evolves. Our card art is hand painted, so it takes time, and we will be revealing more of it as we go!

Our visuals and UI are in good shape today, and we plan to keep improving them over the next year to polish the UI and UX of the game.”

What is the current state of the Early Access version?

“Portentum is playable start to finish today, in three modes: Standard, Arena and Tournament.

Card packs, the collection, achievements, journals and the soundtrack are all in. It runs on Windows, macOS and Linux with controller support, in several languages.

What is missing is polish. Expect rough edges in the interface, balance that moves from patch to patch, and features that change shape once we see how people play.”

Will the game be priced differently during and after Early Access?

“No. Portentum is free during Early Access and we plan to keep it free after. We have no plans to change the price of the starter packs or the other optional in-game purchases.”

How are you planning on involving the Community in your development process?

“Our Discord is the main place, and it is already where players talk to us. We read the Steam discussions too.

We post patch notes with every update, so you can see what your feedback changed. We balance from what you tell us is frustrating or fun, and from the data on card win rates.”
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This game is not yet available on Steam

Planned Release Date: Q4 2026

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Reviews

“GAME GOOD”
5 stars – Bigfoot

“Game is trash.”
5 stars – Jimothy

About This Game

Portentum is online only. Every battle is fought against a snapshot of another player's warband, so you need an internet connection to play.

Portentum is a deck-building auto battler where you craft a roster of legendary cryptids with one-of-a-kind abilities and send them into battle.

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 team, and send them into battles that play out on their own. Your job is everything that happens before the first die lands.

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 in July and let seven million people watch.

DECK BUILDER

Before a run, build a deck of 30 cryptids and mushrooms. Each cryptid is equipped with its own unique ability to deal damage, heal, summon a minion, manipulate the dice, and many other one-of-a-kind effects. 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 gold 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 team remains. Win ten rounds to win the run. Lose five, and you are out.

NO BOTS, ONLY PLAYERS

When you send your warband into battle, Portentum takes a snapshot of it and adds it to the matchmaking pool. Every warband you fight comes from that pool, built by another player in the same round with the same opportunities you had. It makes for an even matchup, and it means you are never fighting a bot.

Because of that, Portentum needs an online connection to play.

FOREVER EVOLVING META

Keep playing, and earn card packs, unlocking entirely new deck-building possibilities to discover combos that are completely broken. The meta keeps shifting as new strategies surface.

A LEGENDARY SOUNDTRACK

Find yourself in flow state to the unique sounds of Portentum. It's as unique, eerie, weird, and mesmerizing as many of the cryptids you'll find in Portentum.

ART MADE BY HUMANS

System Requirements

Windows
macOS
SteamOS + Linux
    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 (64-bit)
    • Processor: 2.0 GHz dual-core
    • Memory: 4 GB RAM
    • Graphics: OpenGL 3.0-capable GPU
    • Storage: 500 MB available space
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 11 (64-bit)
    • Processor: 2.5 GHz quad-core
    • Memory: 8 GB RAM
    • Graphics: OpenGL 3.0-capable GPU with 1 GB VRAM
    • Storage: 1 GB available space
    Minimum:
    • OS: macOS 11 Big Sur or later
    • Processor: Apple Silicon or Intel Core
    • Memory: 4 GB RAM
    • Graphics: Metal / OpenGL 3.0
    • Storage: 500 MB available space
    Recommended:
    • OS: macOS 12 Monterey or later
    • Processor: Apple Silicon (M1 or later)
    • Memory: 8 GB RAM
    • Graphics: Metal-capable GPU
    • Storage: 1 GB available space
    Minimum:
    • OS: Ubuntu 20.04+ / SteamOS
    • Processor: 2.0 GHz dual-core
    • Memory: 4 GB RAM
    • Graphics: OpenGL 3.0-capable GPU
    • Storage: 500 MB available space
    Recommended:
    • OS: Ubuntu 22.04+ / SteamOS
    • Processor: 2.5 GHz quad-core
    • Memory: 8 GB RAM
    • Graphics: OpenGL 3.0-capable GPU with 1 GB VRAM
    • Storage: 1 GB available space
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