Oregon Trail (wiki) was designed as an educational kids’ game, and a generation of students learned about the settling of the U.S. by playing it. There were many ways to die, but it was still rated for general audiences, meaning kids. There was a lot of not-so-pleasant parts of life on the trail that were completely left out,
A list of resources for further reading can be found at Vox.
You can play Oregon Trail (the original version) in your browser, along with Ms. Pac-Man, Tetris, Donkey Kong, and Mega Man - more links to old games here and here.