Epic because it takes that long to finish!
This reminded me of a couple of games which I couldn't remember at first, then it hit me this was a kind of mix of sokoban (sp?) and chips challenge, the latter I recall being VERY hard to complete, only this game doesn't have sections where you have to time your movements carefully.
It's well made that can't be denied, the only flaws I found were the learning curve was all over the place (tutorial IS possible to finish you just have to explore all your options) and that using the grid view on ice maps means you can't see a damn thing. For anyone else playing this, a casual gamers game this isn't! Only hardcore puzzlers and people with the patience of a saint need apply, because you'll be playing this for a loooong time.
I'm surprised this only got daily 4th, but I can only assume that's because the difficultly turns so unforgiving in places.