The new game from the indie developer Edward Curtis-Sivess is best described as a 2-D Dyad. Like that game, In Space features brainstem-tickling waves of hypnotic electronica. Like that game, you play as a little amorphous ship shooting shapes in the distance, and like that game, you get rewarded for shooting matched shapes consecutively.
Unlike that game, however, you're not racing against the clock/end of the course; instead, you are trying to prevent the shapes from crashing into you. This makes the game more of a pure shooter than Dyad. You can play it either in the aforementioned match-3 mode, or in a pure survival mode where every shot reduces the distance that the shapes have to travel to obliterate you. It's much simpler than Shawn McGrath's game, but it's good in a pinch and probably doesn't require taking mushrooms to unlock its full potential.
I asked Curtis-Sivess about his influences in making the game.