Wolfenstein
The "Wolfenstein" series of video games started with the 1981 stealth-adventure video game "Castle Wolfenstein". It was developed by American programmer Silas Warner, a pioneer in the early eras of video gaming, especially the stealth genre. It was published by his (then) company M.U.S.E. Inc. (Muse Software). The player controls an unnamed American prisoner of war as he steals war files containing information about secret German war plans while avoiding or sometimes killing guards, and tries to escape the fortified Nazi stronghold Castle Wolfenstein, set during World War II. The game is often credited as one of the first video games of the stealth genre, since it focuses more on avoiding or disarming enemies, and killing them is considered a last resort.
John Carmack
John D. Carmack II (born August 20, 1970) is an American computer programmer, video game developer and engineer. He co-founded id Software. Carmack was the lead programmer of the "id Software" video games "Commander Keen", "Wolfenstein 3D", "Doom", "Quake", "Rage" and their sequels. Carmack is best known for his innovations in 3D graphics, such as his Carmack's Reverse algorithm for shadow volumes. In August 2013, Carmack took the position of CTO at Oculus VR.