Free Online Games @ MoFunZone.com

Submachine 4: The Lab Online Game:

Game Information:

 - Be sure to play the other parts: Submachine, Submachine: Extended,
   Submachine 2: Lighthouse, Submachine 3: The Loop, Submachine: FLF!
 - Fourth chapter takes us to the heart of the submachine, the place where all 
   questions will be finally answered.
 - Instructions and controls are in-game.