click on Caleb, Doomguy, Duke Nukem, BJ Blazkowicz, Strifeguy, Chex warrior, or Gordon Freeman and they will say a quote!
ID software for Doom and Wolfenstein 3d. 3d realms/Apogee for Duke Nukem. Monolith productions for Blood. Rouge entertainment for strife. Chex inc for Chex quest Valve for Half-life 1.
