I was looking for a small indie title when I discovered forma.8 and was completely disarmed by the beauty and experience of it. No introduction or stated goals can be found. It's all about discovery. The only other game that bears comparison is PixelJunk Shooter, perhaps. If you liked that game, you'lll truly love this one!
I appreciate the way new abilities appear without fanfare, much like the trophies earned along the way. Subtetly is the name of the game here. An absolute gem of a game that I cannot praise too highly. Enjoy!