Free multiplayer survival game inspired by the Netflix series
A hard sci-fi idle game evolving from the Big Bang to an interstellar civilization
Stage
Not given
Not given
Founded
Not given
Not given
Based in
Not given
Not given
Pricing model
Free
Freemium
Pricing
Not given
Free with no ads; optional Supporter: $2.99/mo, $19.99/yr, or $29.99 lifetime; time crystal packs: $1.99 (Skip a night), $4.99 (Skip a wall), $9.99 (Skip a week)
Key features
Red Light Green Light mini-game
Dalgona Challenge
Glass Bridge game
Up to 30 players per session
Player profile customization
In-game chat and alliance system
Achievement system and rewards
Party system for friends
Multiple difficulty levels
Anti-cheat systems
13.8 billion year cosmic timeline from Big Bang to interstellar civilization
118 sourced research cards with scientific citations
12 game eras spanning Cosmos, Life and Civilization
16 different endings
12 civilization channels inspired by science fiction and real concepts
Playable on phone, desktop and iPad with cloud save sync
Installable on phone home screen for offline play
No ads and completely free to play
1,400+ nodes each grounded in real science with sources
Physics-accurate simulation where 1 light-year equals 1 real hour
What makes it different
Authentic recreation of Netflix series atmosphere
No downloads required, play directly in browser
Completely free with no pay-to-win mechanics
Global multiplayer community with real-time competition
Regular seasonal events and content updates
Every scientific claim cites real sources with year, researcher and publication
Hard sci-fi design where physics and signal times follow real scientific laws
Completely free with no ads, payment optional and never pay-to-win
Invented game lore clearly separated and labeled apart from real science basis
Curated collection of 24+ open-source astronomy, physics and biology projects
Squid Game Online
Cosmos Era