Before they made the classic Dungeon Master, FTL (or Software Heaven as they are sometimes known) made the classic Oids – a challenging 16-bit gravity game shooter on the Atari ST.
Again: Oids is one of those games that doesn’t look like much at first glance. At least not until you see it moving.
The fast/smooth scrolling of the landscape, and excellent feel of the craft inertia makes Oids something of jewel in the crown of the gravity game genre.
More: Oids on Wikipedia