Cloned Cube is a Portal mod. It takes place after GLaDOS' fall in Portal. You assume the role of Chell's secret clone. You have to escape or else you may just be tested to death. There is one obstacle. CUBiS is trying to kill you.
My first try at recording with the Source Recorder. Sorry, the audio is out of sync because of VirtualDub and I tried to sync it with my video editor but that is blindingly slow.
First View!