Doublespeak Games in 2013 released an open-source, text-based role-playing game for web browsers called A Dark Room. Gameplay starts out innocently enough with the user awakening in a dark room and having to tend a fire. As play progresses, you take on more responsibility, collecting materials and interacting with characters in the text-based world. Soon enough, you're enveloped in what eventually became a runaway success for Android and iOS devices.

A text-based adventure game might sound as if it's a better fit for an 80s computer game but just like a good book, it's easy to get lost in the words. And now thanks to this portable app, you can dive in on virtually any computer. Read more.