Telehack embodies everything I loved about the eighties. It’s a game that simulates a dialup session with a remote computer through a command line interface. From there you can “wardial” and explore other computers on the network. If you, like me, became totally fascinated with modems after watching WarGames, you must visit Telehack immediately.
Andy Baio has the details on the breath of the game (awe-inspiring) and an interview with its anonymous creator.
Anyway, on the off chance that Forbin reads this, he should know that the game is a masterpiece.