every month from investment companies looking to make id a publicly-traded company, which were all turned down. In 1996, Computer Gaming World declared Wolfenstein 3-D the 97th-best computer game ever released. The game is also recognized as the principal cause for Germany banning video games that contain certain types of symbols and imagery from extremist groups like Nazis under its Strafgesetzbuch section 86a up through 2018. Section 86a had "social adequacy" allowances for works of art, but in 1998, a High District Frankfurt Court case evaluating the Nazi imagery within Wolfenstein 3D determined that video games did not fall under this allowance. The court ruled that because video games drew younger audiences, "this could lead to them growing up with these symbols and insignias and thereby becoming used to them, which again could make them more vulnerable for ideological manipulation by national socialist ideas". Up through 2018, the Germany software ratings board, the Unterhaltungssoftware Selbstkontrolle (USK) refused to rate any game that included inappropriate symbols and imagery, effectively banning the game for sale within the country. By May 2018, a new court ruling was made in response to a parody web browser game, in which the Public Prosecutor's Office confirmed there were no breaches of the law in the game's content. Following this, the ban was reversed by the German government in August, having determined that the Wolfenstein 3D decision was outdated since the USK now included age ratings alongside other content warnings, and that video games should be considered as art under the social adequacy allowance. In November 2019, Wolfenstein 3D was formally struck from the "Index", the list of games banned from sale in Germany. After the game's release, id Software licensed the engine to other developers, like the Commander Keen engine before it, as part of a series of engine licensing deals that id has made throughout its history; games using the Wolfenstein 3D engine or derivatives of it include Blake Stone, the Capstone Software games Corridor 7 and Operation Body Count, as well as Super 3D Noah's Ark. Apogee intended to produce an expansion pack in 1993 titled Rise of the Triad: Wolfenstein 3D Part II, designed by Tom Hall using the Wolfenstein 3D engine, but during development the game was changed into a stand-alone title with an enhanced engine, Rise of the Triad. Additionally, Softdisk produced Catacomb Abyss using the prototype Wolfenstein 3D engine from