Steam Playtests
Omoikane

Open now · Join instantly

Omoikane playtest

by MiyukiNinja

Delve into the addictive world of Rīchi Mahjong with this intense roguelike deckbuilder. Strategically build your wall with powerful tiles, navigate complex interactions, and test your skills against rule bending kami opponents. Every hand counts in this thrilling battle against entropy!

Anyone with a Steam account can join, and it's free.

Access
Instant
On playtest since
Sep 23, 2026
Planned release
Coming soon
Developer
MiyukiNinja
Platforms
Windows, macOS, Linux
Players
Single-player
Languages
English, Japanese, Simplified Chinese, Traditional Chinese

How to join the Omoikane playtest

  1. Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
  2. Use the Omoikane playtest signup there. You're in straight away, with nothing to pay.
  3. The playtest shows up in your Steam library, ready to install and play.

New to playtests? How Steam playtests work

About Omoikane

Omoikane is a Rīchi Mahjong deckbuilding game where the gods themselves are your opponents.

Starting from a standard set of 136 tiles, develop your wall into new forms to achieve impossible hands and incredible scores. Master the game through careful planning, strong intuition, and maybe just a little bit of luck.

The game currently features:

  • 36 types of Tile, the standard 34 and 2 special additions
  • 244 Flowers, each providing unique effects
  • 142 Yaku, providing new ways to win a hand
  • 15 Shogi pieces, radically modifying your wall's composition
  • 48 Hanafuda cards, offering additional rewards for accepting difficult challenges
  • 11 Omamori, offering short-term buffs at a price
  • 50 boss abilities across 10 Kami opponents

Further details coming soon. Please consider adding Omoikane to your Wishlist to keep informed!

From the game's Steam page.