Kefirway
The iterative kefir-making game. Build and optimize your own kefir universe over time, then compare your progress on a global leaderboard.
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Start Playing
Start instantly; sign in later only if you want your progress saved and on the leaderboard.
Live Kefir Exchange
Live feed · Prices updateProducerPriceDemand
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Simulated feed from active universes. Play to set your own price and demand.
Your Kefir Universe
Tune production, prices, and upgrades. Your universe runs in the background while progress accumulates.
Iterative Play
Idle / incremental: start with kefir production, unlock systems, and push the numbers further.
Top Producers
View Leaderboard →Loading leaderboard…
How It Works
- Sign in with Google to save progress and appear on the leaderboard.
- Produce kefir, balance milk, set prices — then let it run.
- Unlock producers and research; return later to refine and climb.
Data & Privacy (Summary)
- Sign in is handled via Google Sign-In (Supabase auth).
- We use your basic Google profile (name, email, avatar) to create and identify your Kefirway account.
- Your game state is stored so you can resume later.
- We do not request access to your emails or contacts, and we do not sell your data.
For full details, please see our Privacy Policy and Terms of Service.
Learn More
How to / What's Going On?Kefirway Platform
Kefirway is developed and operated by the Kefirway team.