Celestrion — Steam game overview

Stored observation / content update: 2026-10-25T05:24:58.000Z

Play inside your very own Orrery, a working heliocentric 3d model of our solar system. Learn the basic facts about each of the planets, and witness them and their moons up close in accurate orbital relation to each other.

Game metrics below are stored observations; missing values are unknown.

Revenue is modelled, not confirmed sales. See the methodology and uncertainty range.