Solo map for Half-Life
The Origin Of Symmetry by JiggZ
Unzip the files in your "Half-Life/" folder :)
then launch the game: hl.exe +map symmetry (or type "map symmetry" in console)
There's no story for this map, it is experimental.
It's about the movie "Cube" or whatever.
Now you should test it!
P.S.: I used some textures from the map De_volare (by B@tman), his website is : http://illa.gamer.hr