For those looking for a coffee cup rogue-like with graphics, you can check out Lost Labyrinth. Here's a list of the features of the title:

• relatively short gameplay (about 10-20 minutes)
• very high replayability; nearly everything in the game is randomly generated
• a lot of options during the character generation; each character type requires another strategy to survive
• game focus on exploration; killing monsters does not give an experience bonus (but makes fun nonetheless)
• Multiplayer games on the same machine (up to 3 players with keyboard, mouse and joystick)
• "Zelda"-like graphics, sound and animation; smooth scrolling of game screen
• FreeWare

Not a bad way to kill 10-20 minutes, actually.

Spotted this at YARNS