A hard sci-fi idle game evolving from the Big Bang to an interstellar civilization
Stage
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Founded
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Based in
PT
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Pricing model
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Freemium
Pricing
Free base game with 20 European countries. Optional in-app purchases: ticket packs, continent expansions (Americas, Africa, Asia & Oceania), and Remove Ads.
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
8,000 handcrafted puzzle boards
800 real nature reserves
2,000+ species to meet
Pure deduction gameplay with no guessing required
Cloud sync and offline play
Ranger Album with species facts
Daily Adventure with real parks
Friends and leaderboards
Puzzle progression from 5x5 to 10x10
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
Real nature reserves as puzzle boards with accurate habitat and species information
Completely offline gameplay with all content bundled in the app
Zero guessing puzzle design philosophy
Free base game with optional expansions
No dark patterns or engagement manipulation
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
Wild Sudoku
Cosmos Era