Fairness in trading requires a truly decentralized currency. AchieveCoin, currency symbol ?, trading symbol ACH, is an open-source cryptocurrency derived from Bitcoin Gold. Just like Bitcoin, there is no central authority to issue or regulate AchieveCoin. AchieveCoin further the decentralize characteristic by using memory-intensive mining process. AchieveCoin’s blockchain starts from number zero, which makes mining possible again for individuals, just like Bitcoin ten years ago.