The Pyramid Game
The Ethereum building game: Profit when people place blocks on top of yours!
Contract on etherscan.io with verified Solidity source code: https://etherscan.io/address/0xC3c94e2d9A33AB18D5578BD63DfdaA3e0EA74a49
The rules of this game are pretty simple: Blocks on the bottom layer cost 0.005 ETH. Blocks on each next layer cost twice as much:
- Layer 1: 0.005 ETH
- Layer 2: 0.01 ETH
- Layer 3: 0.02 ETH
- Layer 4: 0.04 ETH
When someone places a block on top of yours, you get half the value from that block. So, when one block has been placed on top of yours, you've made your money back. When two blocks have been placed on top of yours, you've doubled your money!
There's a 0.5% fee.
At the time I'm writing this, 187 blocks have been placed. The highest block is at layer 7: 0.32 ETH
An interesting aspect of this game is that you can never definitively lose. Either you win soon, or you wait a while longer until you win.
It works with MetaMask, Mist and Parity.
This is not an ICO, but you're more likely to profit here than in most ICO's