A hard sci-fi idle game evolving from the Big Bang to an interstellar civilization
Stage
Established
Not given
Founded
1987
Not given
Based in
US
Not given
Pricing model
Not given
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
Modern remakes of classic games in Unreal Engine
Playable in VR and traditional flat-screen modes
Multiplayer online worlds
Free-to-play multiplayer option
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
World's oldest surviving independent video game studio
Creator of the best-selling video game of the 20th century
Over 15 million copies sold across flagship titles
Pioneer of interactive storytelling and digital exploration
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
Cyan
Cosmos Era