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.
The second map in the Training Center, this area teaches you how to fling along with using buttons and following indicator lights.
Still Portal? Looks like Portal 2.
Good job with design and lighting.
Thanks a lot, the textures were made by me and were influenced but not directly ripped from Portal 2. I use color correction frequently in my maps which gives this a "sterile, blue tone.