What Linus Bruckman Sees When His Eyes Are Closed (Windows, freeware, 42MB) - The answer, surprisingly, isn't "blackness". Linus is an adventure game created by Vince Twelve that takes the dual screen idea to a different level and tasks you with playing two different games at the same time: a space comedy and a medieval Japanese story. Your cursor is split into two parts, one for each half of the screen, and they track each other. When you move on one half you move in the other, likewise with clicking objects. To solve puzzles you have to rely on information from each half of the screen, putting clues together to figure out what's going on. Linus is a genuinely great game that deserves a look from everyone, not just die-hard adventure gamers.

NOTE: Some comments, from when this game was first mentioned on the site, may be found on this page.