Steam Playtests
Yomino

Open now · By request

Yomino playtest

by Nukenin

A block-puzzle deckbuilding roguelike set in Japanese Hell. Draw pieces from your deck, clear lines, and combine relics (omamori charms) to rack up virtue and wipe out sins you never committed. One placement can blow up your score. Outsmart the oni wardens' unfair handicaps and face King Enma.

It's free to ask. The developer chooses who gets in.

Access
By request
Planned release
Coming soon
Developer
Nukenin
Platforms
Windows
Players
Single-player
Languages
English, French, German, Italian and 6 more

How to join the Yomino playtest

  1. Open the game's Steam page with the Request access button. Sign in to Steam if it asks.
  2. Request access to the Yomino playtest there. It's free and doesn't commit you to anything.
  3. The developer lets players in, often in batches, so it can take a while. Steam emails you when you're in, and the playtest appears in your library.

New to playtests? How Steam playtests work

How AI is used

How we use generative AI All final artwork, music, and sound in Yomino are made by our human artists and composer. We do not ship AI-generated art as-is in the game. We use generative AI as a supporting tool in the following areas: - Code-driven visual effects (e.g. score orbs flying to the score counter) and some shader effects - Brainstorming and rough sketches during early art exploration, which our artists then create from scratch - Temporary placeholder assets during development (replaced before release) - First drafts of in-game text, which are reviewed and rewritten by the team - Translation for some languages, reviewed by the team We will keep this page updated if our usage changes.

The developer's own words, from Steam.

About Yomino

Build the board. Break Hell's score.

Yomino is a dark Japanese roguelike that fuses block puzzles with deckbuilding. Draw a piece from your deck, place it on the board, and fill a row or column to clear it. That simple move, chained through your Relics, snowballs into scores that break the scale.

Where you place it defines your build

Which cell, which piece, which way. Every placement can trigger your Relics, and the same Relic can produce completely different results depending on how you place. It's not just the luck of the draw — your reads change the score.

Discover broken combos yourself

Relics, Patterns, Seals, Editions, Amulets, and Forbidden Arts. Rewrite the pieces themselves, grow the board, and stack your Relics. "What happens if I combine these two?" — that question leads to winning strategies no one has found yet.

Turn the board into a scoring engine

Score = Block Points × Line Points. Which side do you grow, and where do you multiply them? The moment your machinery clicks into place, the numbers explode.

Read through the wardens' handicaps

The warden of each layer imposes unfair handicaps — shrinking your hand, sealing your Patterns, and more. Your build seemed complete; now solve the new problem it faces with smart building and placement.

Into the depths of Hell

A legendary gambler, killed for exposing a cheat and cast into Hell where he never belonged. His only way back to the world of the living: defeat the warden of every layer at "Yomino," the board game the damned play to pass eternity, and reach King Enma in the deepest pit. With a board from his guide, the nekomata, and pieces carved from sinners' bones, the gambler descends.

The more boards and difficulties you take on, the deeper Hell goes.

From the game's Steam page.