Plot: Crazy Machines is a puzzle computer game created by German studio FAKT Software GmbH. Crazy Machines based many of its ideas on The Incredible Machine series of games. Wikipedia
Plot: Warmonger: Operation Downtown Destruction is a first-person shooter video game developed by NetDevil that uses the Nvidia PhysX engine. It was available as a paid download from the official site and from Nvidia via their free GeForce Power Pack download. Wikipedia
Plot: Crayon Physics Deluxe is a puzzle video game designed by Petri Purho and released on January 7, 2009. An early version, titled Crayon Physics, was released for Android from 2006-2007 developed by Acrodea Korea, Inc. Deluxe won the grand prize at the Independent Games Festival in 2008. Wikipedia
Plot: Darkest of Days is a first-person shooter video game developed by 8monkey Labs and published by Phantom EFX. Originally released for the Xbox 360, it was also released for Microsoft Windows via Steam. On December 30, 2010, Virtual Programming published the Mac OS X version of the game. Wikipedia