01No signup
Open a game and play. Nothing to create, nothing to save on our side.
BTC21 // ABOUT
Bitcoin educationThrough games
Open a game and play. Nothing to create, nothing to save on our side.
No addresses, no Lightning, no sats to claim. These teach — they don’t pay.
Once loaded, a game runs without the network. Bundle the assets; play anywhere.
Same mempool or event deck for everyone each day. Scores stay comparable.
Invented UI stats are tagged SAMPLE. Protocol constants stay exact.
MAX_SUPPLY 21,000,000 (real cap: 20,999,999.9769 BTC) · BLOCK_TIME ~600 S · HALVING 210,000 · SATS 100,000,000 · GENESIS 03.01.2009
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Designed by MJB · GENESIS 03.01.2009