A takedown notice sent by ZeniMax led to the Android Store's removal of several ports of Doom, Quake and Wolfenstein; one of the developers admits that, though the port used open-source Doom code, some of the game files were proprietary.
ZeniMax, which of course now owns iD software, filed the DMCA complaint with Google. Developer L!TH!UM told the site Android and Me that Doom for Android, offered for free, was built with open source code but "My mistake was allowing the download of the Plutonia and TNT WADs, at least that is what I suspect."
"Although I may not be able to distribute the application through the Market, the APK can still be downloaded and installed through the web," the dev said.
Other ports pulled include: Ultimate Doom; Quake Platinum; Doom II; Wolf 3D: Spear of Destiny (two versions); Wolfenstein 3D; Quake GL; Wolfenstein 3D Lite (Beta 2) and Doom Soundboard.
iD Software frags Doom, Quake, and Wolfenstein ports for Android [Android and Me via Game Politics]