Can you guess which 2 mysterious games Deus Ex director Warren Spector secretly worked on, but decided not to be credited for?

Veteran PC game creator Warren Spector is credited with working on 46 games on Mobygames, though that may not be a perfectly comprehensive list for a designer and director who's been making games since the 1980s. Actually, it's definitely not a perfectly comprehensive list—while Mobygames has Spector's credits on the likes of Deus Ex (producer and project director), Ultima 6 (writing), and Epic Mickey (creative director), there's no way for the Mobygames database to include projects he wasn't credited on to begin with.