Return to Castle Wolfenstein
"Return to Castle Wolfenstein" received favorable reviews from critics. At Metacritic, it scores 88/100 (based on 32 reviews), and on GameRankings it scores 86.75% (based on 50 reviews). "Eurogamer"'s Tom Bramwell called "Return to Castle Wolfenstein" "a worthy addition to the stable of id Software affiliated shoot 'em ups. The single player game is average to good and takes quite a while to finish, but the game really earns its salt by shipping with a first class multiplayer element."
Return to Castle Wolfenstein
The source code for "Return to Castle Wolfenstein" and "Enemy Territory" was released under the GNU General Public License (GPL) on August 12, 2010. The "ioquake3" developers at icculus.org announced the start of respective engine projects soon after.