Game Contracts
On-chain game contracts and early blockchain gaming experiments, including prediction markets.
Contract 0x17728339...
An early on-chain lottery contract deployed on Frontier by the prolific 0xFD2605 deployer cluster.
0x177283...4664aaAugust 10, 2015Roulette
An early Ethereum roulette contract from August 2015, notable for a critical randomness vulnerability: its 'private' seed is hardcoded to 1 in the constructor.
0x5fe5b7...25a4fdAugust 10, 2015Gamble
A 106-byte coin-flip: send ether and, if the block timestamp is odd, the contract tries to send back double. If it is even, you lose the stake.
0x4b9105...7ea144August 19, 2015Prediction Market
LMSR prediction market (Aug 2015 – Jun 2016, 662 ETH). 11/25 selectors byte-exact, 14/25 semantic reconstructions.
0x2935aa...7a9085August 23, 2015Gamble
A 106-byte coin-flip: send ether and, if the block timestamp is odd, the contract tries to send back double. If it is even, you lose the stake.
0xdeed9f...8caea8August 26, 2015Gamble
A 106-byte coin-flip: send ether and, if the block timestamp is odd, the contract tries to send back double. If it is even, you lose the stake.
0xc0e0cc...e5e84dSeptember 5, 2015Gamble
A 106-byte coin-flip: send ether and, if the block timestamp is odd, the contract tries to send back double. If it is even, you lose the stake.
0x610374...40523cSeptember 21, 2015Gamble
A 106-byte coin-flip: send ether and, if the block timestamp is odd, the contract tries to send back double. If it is even, you lose the stake.
0x9455c9...2f874bSeptember 21, 2015Gamble
A 106-byte coin-flip: send ether and, if the block timestamp is odd, the contract tries to send back double. If it is even, you lose the stake.
0xda509c...a5c42bSeptember 21, 2015