CTF-Kernel

This is an unusual ctf map performed in futuristic setting. There are three levels: upper, common and lower. Lower and common separated by glass. You can see your enemy carrying your flag, but you can't kill him through the glass! There are also some fun features on this map. To prevent your brains from being damaged,I'd better say: this map is VERY unusual.

No living creature remembers who constructed these giant skyscrapers eons ago. No one knows why they still function on this deserted planet.