I have 2 Amiga favourites, well 1 very favourite and 1 really, really very favourite.
Number one goes to Tony Crowther's Captive (I didn't like Captive 2 though), one of the most brilliant sci-fi dungeon crawlers ever with thousands of levels. Still play it nowadays, off and on.
Number two would be Carrier Command. A remake of this could be mind-blowing!
Although the Amiga lost out when it never got a version of the Atari ST's Oids. That would go on the list, but this is an Amiga thread. Ho-hum.
It's also a shame that Midwinter 1 and 2 were just too hardware demanding at the time. That had great potential and someone should do a remake of those too.
Starglider 2 also deserves an honerable mention, as does DID's Inferno.