How to Play

• Transactions arrive in the Mempool Queue (Left).
• Click a transaction to add it to your Candidate Block (Right).
• High Fee Rate txs (Orange/Yellow) pay more per byte!
• Don't exceed the Block Weight Limit.
• Miner collects all fees when the timer hits zero.

Why it matters

Miners are profit-driven. They prioritize transactions that pay the highest Fee Rate (sat/vByte), not necessarily the total amount. This economic game theory secures the network and creates a fee market for block space.