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Planet Nine

CasualPCSoloBuy · from $6.99

About this game

Scores go to global leaderboards 🪐

Last checked 4 Nov 2026

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Planet Nine

Scores go to global leaderboards 🪐

Available on Steam (PC) — Buy · from $6.99, checked 4 Nov 2026.

More about Planet Nine

Planet Nine is a physics-based puzzle game where players merge planets by colliding them like billiard balls to unravel the mystery of the universe. The game features adorable planet characters, a unique merge system that grows from tiny Mercury toward larger planets, and a physics-based mechanic where merging planets can send others flying. Players aim to reach the ninth planet through global and regional leaderboards, with scores tracked across daily, monthly, and all-time rankings. The game is designed for quick sessions (3-5 minutes per run) and supports 17 languages, including English and Japanese.

Availability historyPast official availability changes
  • BuySteam · PC · 15 Oct 2026