09 IGF Winner for "Vision"
Osmos, one of this year's , is sort of the anti-Asteroids. Like Asteroids, you control an entity moving per Newtonian physics, with the ability to accelerate in arbitrary directions; unlike Asteroids your objective isn't to shoot at and disintegrate other floating objects, but instead to intercept and absorb them.
You cannot, however, absorb something larger than yourself; they'll absorb you instead (end of game). The game tints larger objects red, so it's easy enough to identify, if not always to evade, them. One other filip; accelerating consumes a portion of your own mass, so you need a light touch on the accelerator.
Osmos is a work in progress, with a handful of existing levels (and some marked "not in demo," so presumably this becomes a commercial product at some point -- for Wii as well as PC, apparently). Levels vary in objective -- in some, your goal is to become the largest object, in others to absorb a repulsor or other special object -- as well as in layout. That is, the early levels are apparently in free space, while others have a central 'sun' which exerts gravity on objects, causing them to orbit it.
Like a number of recent indie games, Osmos goes for a feeling of serentiy with its visuals (and ambient score); and its visuals are undeniably beautiful. Despite the (modest) level of variation among existing levels, its not clear yet whether the essential framework provides enough depth and variety to sustain interest over a larger number of levels. But it's certainly a good start.
Gameplay video for those who are interested: