Draw a fish and watch it swim in a shared aquarium with everyone else's
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
Draw with multiple tools (pen, marker, spray, eraser) and custom colors
Real-time fish detector showing how fish-like your drawing is
Automatic naming and quality rating of drawings
Global aquarium where all fish swim together
Feed fish to make them grow and climb rankings
Global leaderboards for fish and artists
Shareable fish cards and personal pages
Mobile-friendly drawing with touch support
XP system and aquatic levels for logged-in artists
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
No account required to draw and participate
Real-time AI fish detector provides instant feedback while drawing
Community-driven growth where anyone can feed any fish
Beautiful automated naming system for every creation
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
DrawAFish
Cosmos Era