It's in the main post, the website, and the whitepaper, but for those who missed all that:

Copy and paste the following address into your wallet and send ETH to mine FUTR: 0xc83355eF25A104938275B46cffD94bF9917D0691

Do not use an exchange wallet!  Use only a wallet that you control (i.e.: have the private key) and that supports ERC20 tokens.  For example, myetherwallet.

The tokens will be sent immediately to you in the same transaction. Because of this it takes slightly more gas.  Around 60,000 gas.

To add as a custom token use the same address: 0xc83355eF25A104938275B46cffD94bF9917D0691

Decimals is 18.