http://www.tunnelsandtrolls.com/
http://www.trollishdelver.com/
Tunnels & Trolls Deluxe Edition mmm, never played tt but looks to have plenty solo modules. might give it a try.
dude - T&T is probably older than you are. It was a great game back in the day b/c it was a lot of the fun and goofiness that D&D could've had, but tried to be too high-minded about.
lol almost i was 1 when it was first published but good to know things like this are out there just waiting to be found.. yey information super highway.