A hard sci-fi idle game evolving from the Big Bang to an interstellar civilization
Party games for the TV you already have
Stage
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Founded
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Based in
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Pricing model
Freemium
Paid
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)
Showdown: $7.99 USD. Grand Slam: $7.99 USD. Agents of Mischief: $7.99 USD. Werewolf: $4.99 USD. All prices are one-time purchases with 30-day access via Party Pass Code.
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
Rules and scoring displayed on TV screen
Runs offline after initial load
Phone remote control via QR code
Built-in music and ambient sound
No downloads or accounts required
Adaptive difficulty for mixed ages
Dynamic team shuffling between rounds
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
All games run on existing TV with browser, no special equipment needed
Host runs the room while TV manages rules and scoring
30-day access from single purchase, no subscription
Works offline after initial load to handle spotty Wi-Fi
Cosmos Era
Lets1UP