"Castle Wolfenstein", originally available in 1981, employed stealth elements as a focus of the gameplay. Players were charged with traversing the levels of "Castle Wolfenstein", stealing secret plans and escaping. Players could acquire uniforms to disguise themselves and walk by guards undetected. "Beyond Castle Wolfenstein", released in 1984, included some additions to its predecessor, such as a dagger for close-range kills and a greater emphasis on disguising in enemy uniform. id Software's updated 1992 remake "Wolfenstein 3D" was originally going to feature some of the original's stealth gameplay, such as body hiding, but this was cut to make the game faster paced. As a result of these changes, "Wolfenstein" would instead pave the way for later 3D action games, specifically first-person shooters.