A fast-paced endless runner starring a stickman who never stops running
A hard sci-fi idle game evolving from the Big Bang to an interstellar civilization
Stage
Not given
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Founded
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Based in
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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
Jump and double jump over obstacles
Roll under low barriers
Land on crate tops for additional jumps
Avoid saw blades and obstacles
Track distance as score
Keyboard controls (up and down arrows only)
No account or download required
Play in modern web browsers
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
Simple two-key control system with unlimited difficulty progression
Original game by Manuel Otto faithfully preserved for modern browsers
Authentic physics and gameplay faithful to the original
Pure skill-based gameplay without microtransactions or pay-to-win mechanics
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
Stick Run
Cosmos Era