This quest to discover Aquaria was automagically added, as described at I'm gonna do a silly thing that adds hundreds of posts to the quest board... 
[] Game page
I’ve wanted to play Aquaria with Clover for a long time! E digs merfolk, and this game is beautiful and fun, in that Ecco the Dolphin way.
I also recall the source is somewhat free, though I don’t remember much more than that.