Those are the two biggest. There are lots of incredible projects in development now, though.

'Super Hero X' is another one that was somewhat popular some time ago aswell. And a BIG game engine that was recently translated from C source to Object Pascal with Delphi was id Software's Quake 2 engine.

Quake 2 Delphi Conversion @ http://www.sulaco.co.za/Quake2/

and I can't find a decent referance to the Super Hero X, but if you check the news archive in Delphi Gamer(www.delphigamer.com), you'll find a few news items about it(2001-2002 around then).