Developer posts and news about this game.
We are thrilled to announce that Valve has completed its compatibility check, and "ULTRA0" is fully verified. You can now enjoy the complete gaming experience seamlessly on your handheld device. To all Steam Deck owners out there: grab your Deck and dive into the world of "ULTRA0
ULTRA0—the casual, exhilarating 3D shooter meets sci-fi Yuri visual novel —is joining Steam Bullet Hell Fest 2026! We’re running a limited-time 10% discount. Don't miss this chance to dive into the world of ULTRA0!
Thank you for always supporting "ULTRA0"! Today, Tuesday, June 2, 2026, "ULTRA0" has officially been released! We are currently running a launch sale where you can purchase the game at 10% off. Don't miss this opportunity to grab your copy! Streaming Guidelines We highly welcome
PenGames sincerely welcomes everyone to engage in streaming and video creation activities based on "ULTRA0." 1. Streaming and Monetization You are free to monetize your video uploads and live streams of the game, regardless of whether it is for commercial or non-commercial purpos
Thank you for supporting ULTRA0! The release date for the Visual Novel × Casual Shooter game ULTRA0 has been officially set for June 2nd, 2026! Set in Country N under the threat of giant monsters, this game is a shooter with a heavy emphasis on its visual novel parts, depicting t