Save 10% on X-Out: Resurfaced on Steam
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Build your fleet and face the alien terror from the deep! Now it’s up to you alone to stop an alien invasion from the depths of the ocean in this legendary, home computer era shoot ‘em up dredged up and faithfully rebuilt for modern platforms – X-Out: Resurfaced!

Out yesterday, in fact. The description (as written by the good folks at Retronauts):

What’s this? A remake of Rainbow Arts’ horizontally-scrolling subaquatic shooting game X-Out, developed and published or the Commodore 64 and Amiga computers by Rainbow Arts in 1990 and ported to Atari ST, ZX Spectrum, and Amstrad CPC; produced by the team responsible for the recent Rainbow Cotton remaster, this version offers drastically modernized visuals based on the Amiga-version graphics, a new 2-player local co-op mode, adjustments to the game’s shop system and weapon loadouts, brand-new arranged BGM by composer Chris Huelsbeck (alongside the original C64 and Amiga renditions) and more.