If I was a kid and misheard Oregon Trail as Organ Trail, I would imagine this game. Basically take the same premise as Oregon Trail, but set it during a zombie apocalypse.
I got through one play through where everyone died either by zombie attack, broken legs, sickness or exhaustion. Numerous time I ran out of food and fuel…so you know Oregon Trailer (the game even has dysentry).
You can play it at this link: Organ Trail