Your inner child is going to totally freak out once you find out that almost 2,400 MS-DOS games are available to play online [1] for free. Straight from the '80s and '90s, games like Oregon Trail [2], Master of Orion [3], and Donkey Kong [4] are just a click away thanks to the Internet Archive [5]. The site is best known for its Wayback Machine, a repository filled with pictures of old websites. Now you have instant access to thousands of favorite computer games from the past — just try not to die from typhoid or cholera as you ride your wagon to the west.