1893: A World's Fair Mystery (2003)

The fairground's scale turns time management into route planning. Most commands spend a minute, opening hours affect useful visits, and meals and sleep take larger chunks of an investigation that can run across the week. Photographs and the supplied maps help you keep your bearings, but this is a substantial exploration commitment. The HELP system, WAIT UNTIL, SAVE and RESTORE give practical support, and the game supports multiple turns of UNDO. A good choice when you want to plan a detective's working days rather than optimise one tense evening.