The Oregon Trail is a game originally developed in 1971 for the PC, with the intention of depicting the life of settlers travelling on the Oregon Trail.
The goal of the game was survival. You would play as a wagon leader guiding his party through the Oregon Trail, and were required to hunt animals to keep your food reserves in order. Party members would often die of disease, snake bites or even exhaustion. Points were awarded at the end of the game upon completing your journey, based on factors like your character’s job, your resources and number of surviving party members.
Since its original debut, The Oregon Trail has been remade and ported across numerous platforms, including, more recently, iTunes and DSiWare. Now, a Gamefly listing indicates that the game is headed to the Nintendo 3DS in some form as well, with Red Wagon Games publishing the title. Below are screenshots of the iPhone and DSiWare versions to give you an idea of how they looked: