A hard sci-fi idle game evolving from the Big Bang to an interstellar civilization
Free party games for groups played from phones with a room code
Stage
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Founded
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Based in
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Pricing model
Freemium
Freemium
Pricing
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)
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Key features
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
51 games including word, drawing, trivia and bluffing games
Join with room code from phone or browser
No account or sign-up required
Computer opponents available
Ranked games and leaderboards
Video cameras in paid team rooms
Slack integration for game notifications
Games persist on server if player disconnects
What makes it different
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
Cosmos Era
Table Party