http://sdl.netlabs.org/index.phtml?show=download
Included are Abe's Amazing Adventure 1.0, 2Pong 0.6, Dave Gnukem 0.54e, Formido 1.0, Rock Dodger 0.6, Tile World 1.0, SDLZombies 1.0.0, SDLRoids 1.3.4, SnakeMe 1.0, UHexen 0.601, xrick, and Tower Toppler 1.0.5.
There are screenshots available so you can get an idea of what the games look like before downloading.
http://sdl.netlabs.org/index.phtml?show=screenshot
Source: OS/2 News and Rumors