I call it a "megaproject" since I'm pretty convinced I can see this one through to the end without getting bored or sidetracked onto something else.
It's called Worldcrafter. In a nutshell, it's a 2D Minecraft-style game for Android. Yes! Another one! This is what it looks like so far, after about 5 days since I started (most of those days being spent trying to decide what to call it):-
Does the world need another Minecraft game? I'll let the world decide. What I like about writing this kind of game (and what I like about Stellar Forces) is that it's almost "modular". You (i.e. me) can play a bit, then think "ooh, wouldn't it be good if it did this". And then add it. However, the basic game is quite easy to get up and running, and that's the important bit when starting a new project: have something playable ASA-goddam-P.