Supaplex

If you're looking for an involving puzzle game (which bears a strong reseblance to the classic game "Boulderdash"), Superplex might be what you're looking for. It recently has been updated to work on modern machines. It features distinctive graphics with a computer-ish theme, and a plehora of precarious puzzles (yay alliteration). The menus are a bit confusing at first but once you get into the game it's great. The version available for download here is a "speed fix" version which was released by Elmer Productions. You can also play a modernized version online at supaplex.online.