BitCrystals are Counterparty assets which acts as game currency for EverdreamSoft’s upcoming mobile game Spells of Genesis (SoG) and trading card game Moonga. BitCrystals come about because the game creators believe that players should be able to keep their game assets outside the control of game developers' databases and like a normal economy, allow for free trade of the virtual goods. There was a crowdsale of the BitCrystals token where 70% of the 100 million total tokens were made available for purchase. The remaining 30% were given to early supporters and contributors. All unsold BitCrystals were burned on October 2015. A total of 974.13 BTC was raised during the crowdsale.
Aeon is a mobile-friendly, lightweight privacy coin. Similar to the way that Litecoin is a lighter supplement to Bitcoin, you can look at Aeon as Monero’s little brother. The Monero community is wholly focused on privacy and anonymity for the end-user. This focus has its perks but has caused the coin to fall behind from a usability standpoint. Aeon builds upon Monero’s CryptoNote hash while adding some lightweight functionality of its own. Aeon is the lighter, faster version of Monero. Although both projects share the same underlying privacy protocol, CryptoNote, Aeon is striving to be more accessible. The project is doing so by implementing a lightweight mining algorithm, smaller blockchain, and optional anonymity. As Monero grows, Aeon could very well grow with it. While you would use Monero for transactions in which you want to assure privacy, you may find Aeon to be a suitable substitute for day-to-day exchanges in which guaranteed anonymity isn’t as important.