If you remeber and liked the old Oregon Trail game, then you might want to look into Organ Trail, on Steam. It's a fun, cheap little zombie survival game done up in the style of Oregon Trail. You have to try to slip past hordes of zombies, hunt for food and supplies, barter in little towns and with passers-by for spare parts for your car, all sorts of fun little things. Not to mention having to make the call to off or not to off an infected party member.