Any game that features email spam as the main boss character deserves a spot on this list, hence Darwinia. The war against renegade inboxes begins in the computer lab of Dr. Sepulveda, the game's main character, as he attempts to save years of research he has houses within his computer, powered by artificial intelligence beings named Darwinians. We're going to go ahead and postulate that this game went under the radar because we all play the real-life version of it everyday—damn you, Microsoft Outlook!