Acoin is an SHA-256 Bitcoin clone. The block reward varies with a block reward of 2-10x normal roughly every 1 in ten blocks. The block reward initially starts at 1 and reduces by 50% every 6 months. [BitcoinTalk](https://bitcointalk.org/index.php?topic=761818.0) | [Reddit](https://www.reddit.com/r/acoin/)