About Planet Nine
Planet Nine is a single player casual puzzle game with a science fiction theme. It was developed by haizai and was released on September 9, 2026.
Planet Nine is a planet-merging puzzle game with billiards-inspired mechanics. Players aim shots to merge matching planets into larger ones and work toward creating Planet Nine. The game features short play sessions, online score leaderboards, and unlockable background themes and music.









Games Like Planet Nine
Looking for games like Planet Nine? Here are top casual puzzle recommendations with a science fiction focus, selected from player-similarity data — start with Dashing Krew, SlimeBrew or Pilo and the Holobook.
Frequently Asked Questions
Planet Nine is a casual puzzle game with science fiction theme. Common tags for Planet Nine include science, futuristic, indie, score attack, relaxing and others.
Planet Nine is available on PC, Mac OS and Windows.
Planet Nine was released on September 9, 2026.
Planet Nine was developed by haizai.
Planet Nine is a single player game.
Similar games include Dashing Krew, SlimeBrew, Pilo and the Holobook, Bubble Shooter Arcadia, Planet of the Eyes and others.
















