Criteria Releases Zero Nine Reversi on Steam
The PC version of the reversi-style puzzle game launches with a 10 percent discount before its price rises after November 15.
Updated on Nov. 8, 2026 in Gaming

Criteria has released El Shaddai: Zero Nine Reversi for PC through Steam, following the game's April 27 debut on iOS and Android. The PC version launches at $3.59 with a 10 percent launch discount.
Why it matters
The PC release brings the game to a new platform and gives players a limited window to buy it at the discounted launch price. The mobile versions were updated with online multiplayer support and an archive alongside the PC launch.
The PC version launches at $3.59 with a 10 percent launch discount, and the price rises to $3.99 after November 15. In Classic mode, each flipped stone loses 1 HP, and a stone is purified and removed from the board when its HP reaches zero.
The players
Criteria
Criteria is the developer and publisher of the El Shaddai series, including Zero Nine Reversi.
Steam
Steam is Valve's digital distribution platform for PC games, where the Zero Nine Reversi PC version is sold.
The details
Zero Nine Reversi includes a Classic single-player mode and an Online versus mode. The mobile versions were updated with online multiplayer support and an archive, and the PC version arrives on Steam on November 8, 2026.
Timeline
April 27: The game first launched for iOS and Android.
November 8, 2026: The PC version released on Steam and mobile updates arrived.
November 15, 2026: The PC price increases from $3.59 to $3.99.
Roadmap
The PC launch extends the reversi-style title from mobile app stores onto Steam, a storefront where niche puzzle games reach desktop players. It follows the earlier April mobile debut as a pattern of ports reaching PC after an initial mobile release.
Players can buy the PC version on Steam for $3.59 with the launch discount until the price rises to $3.99 after November 15. Mobile players on iOS and Android now have access to online multiplayer and the game's archive.
The takeaway
Players who want the discounted price should purchase the PC version before November 15, when it increases to $3.99. Mobile owners can use the new online versus mode to play against others.
What happens next
The PC price rises from $3.59 to $3.99 on November 15, 2026.
Further reading
For more on puzzle releases, explore the Gaming section.
Source note: This article includes information reported by Gematsu.







