SSO : Stone Simulator Online
Released
About the game
Become a little rock and do absolutely nothing — together. Chat by voice, doodle on a shared board, study with a Pomodoro circle, and let birds and moss settle on you in a cozy online hangout with friends.
Original Steam description
Become your very own little rock and do absolutely nothing — together. SSO is a cozy online hangout where you sit, roll, and relax with friends while the weather drifts by, birds land on your head, and moss slowly takes over.
What's new in v0.2 — the Social Update
- Voice chat — push-to-talk (V) or open mic. Voices come from each rock in 3D, so whispers stay close.
- Text chat & emotes — speech bubbles, jumps, high fives, and shaking off your moss.
- Shared drawing board — doodle on a big chalkboard with everyone in the room, live.
- Study corner — a real-clock Pomodoro circle (25 min focus / 5 min break) so every room studies on the same beat.
- Birds — stay still long enough and up to three birds will perch on you. Move, and they scatter.
- Steam friends — invite friends or join them straight from the Steam overlay.
A living rock
- Moss grows (faster at night), spreads between neighbours, and turns with the real seasons.
- Fireflies at night, a pond that washes you clean or polishes you into a pebble.
- Stack up with friends to build cairns.
- Photo mode to capture the moment.
Make it yours
- 29 levels and a whole quarry of rock shapes — from skipping stones and geodes to Moai and Dol Hareubang statues.
- Paint your rock with a full brush, fill, eyedropper and undo toolkit.
- 24 Steam achievements.
Available in English, Korean and Japanese.






Demo and release information
No demo is verified in the current check data. This does not mean the game has never had a demo; check its Steam page for current availability.
Steam demo, playtest and Early Access: what is the difference?
Information & artwork: Steam · Last checked UTC