Let me start myself. I have played many games on my real C64 (besides BD). Especially the platformer shoot 'em up games like Who Dares Wins and Ikari Warriors attracted me much.
Two games that are less known, but havily belong to my favorites are:
- Sensitive (very hard puzzles, but no editor
![Sad :(](./images/smilies/icon_sad.gif)
- Breaker (the best Arkanoid clone, imho...)
Besides these C64 games I also use MAME (Arcade emulator) quite often. (For some games, like Ghosts 'n Goblins I think the Arcade version is simply better than the C64 conversion.)
And there is one pc racing game that I'm playing regularly, which is Re-volt.