"Where on the Oregon Trail is Carmen Sandiego?" is a short, silly command-line game I made basically because I had joked about it often enough. It is licensed under the GNU Public License.
The player starts out in a town on the Oregon Trail and chases Carmen Sandiego, usually westward. The player must make a few choices along the way, inferring from clues to guess where Carmen might have gone.
I do not currently plan to implement hunting, trading, dying of dysentery, variation in meal sizes and speed, any in-game time limit, river-fording, money, warrants, or a points system. Also you do not need to consult the Broderbund almanac to level up, because there is no such thing as leveling up.