Coming November 2026 Date not final Early Access

Planets in a Box

By Greenleaf · published by Greenleaf ApS

Track this game Steam page

Followers —

Reviews 0 No user reviews

Players now — Not released yet

Followers, 30 days — Not enough history yet

Planets in a Box is a game tagged Simulation, Sandbox and Physics by Greenleaf, launching on Steam in November 2026. The quietest week ahead for games like it starts Nov 30. The Steam games most like it include Worlds in Orbit, Absolute Sol and SimpleRockets.

Smash planets together in a real-time physics simulator. Watch a Mars-sized world hit the young Earth, debris spread into a disk and a new moon form, and tides stretch and spin up worlds. Up to 4 million particles on your GPU. Record the raw simulation data and replay from any angle at any speed.

From the Steam page

Busiest weeks for games like this one in the next 12 weeks:

Week of Oct 26, 2026 — Packed, 147 similar games
Week of Nov 9, 2026 — Packed, 142 similar games
Week of Nov 2, 2026 — Packed, 139 similar games

Quietest: Nov 30, Dec 7, Jan 11.

Is this your game?

Track it free: see how crowded the weeks around your launch are, and hear the moment a rival moves its date.

Yes, track my game

Launching something like it? Watch it next to yours.

Add a launch badge to your website

Show players when it launches. Paste the code into your website, press kit or devlog.

<a href="https://launchrivals.com/games/5411970-planets-in-a-box"><img src="https://launchrivals.com/games/5411970/badge.png" alt="Planets in a Box launch date" width="320" height="84"></a>

<a href="https://launchrivals.com/games/5411970-planets-in-a-box"><img src="https://launchrivals.com/games/5411970/badge.png?theme=light" alt="Planets in a Box launch date" width="320" height="84"></a>