Hmm... I'm interested in the 'prime', 'xteem', and 'liquid', those are quite creative and interesting, but not really in the chain ones as I think that the 'chain' is kinda overused in the space, and doesn't represent Engine as well since it primarily runs on top of another blockchain Steem.

Nice job! This could be the one; we'll see! Also: make sure to edit your comment to add that you resteemed this post so that you can be eligible for the resteem reward.