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Licences

268 bytes added, 16:06, 28 July 2014
Remove links from section headers and put them into the prose instead; also some elaboration on Heretic/Hexen
After the success of Doom, [[Id Software]] gave [[Frans P. de Vries]], the then-[[Idgames archive]] maintainer, permission to upload the alphas and press release due to their historic interest.
=== [[Shareware]] episode ===
The episode ''[[Knee-Deep in the Dead]]'' was released as [[shareware ]] on the [[Wikipedia:University of Wisconsin|University of Wisconsin]] [[Wikipedia:File Transfer Protocol|FTP]] server on [[Timeline#1993|December 10, 1993]].
=== [[Doom II]] ===
''[[Doom 2'' II]] was the first traditionally commercial release of doom. It was first sold boxed in high street stores on [[Timeline#1994|September 30, 1994]] and no shareware or demo version was released.
=== [[Source code]] release ===
ID Software released a modified version of the Doom [[source code ]] to the public on [[Timeline#1997|December 23, 1997]]. This release was under ''the DOOM Source Code License'', described within the file ''DOOMLIC.TXT''.
This licence permitted use the source code for educational purposes only. It explicitly forbid selling the source code or using it for commercial gain as well as distributing the source code.
=== [[Heretic]] and [[Hexen]] source code release ===
{{main|Raven source code licensing}}
=== [[Wikipedia:GNU General Public License|GNU General Public LicenseRaven Software]] ('s [[Heretic]] and [[Hexen]] were initially released under a restrictive EULA, similar to but even less permissive than the Doom source license. This was eventually remedied with a GPL) ===re-release after an extensive community effort to petition for the change.
After the loss of the source code to [[glDoom]] in 1998 from a hard drive crash, some people, including [[John Carmack]], suggested that if the author had been required to distribute the changes he made to the code, then it would have been more likely that others would have had copies of the source. As a result, id Software relicensed the source code to Doom under the terms of the === GNU General Public License (GPL on [[Timeline#1999|October 3, 1999]]. Many existing [[source ports]] followed suit by obtaining permission from their copyright-holders to relicense their work.) ===
== Present ==After the loss of the source code for the [[glDoom]] [[source port]] in 1998 due to a hard drive crash, some people, including [[John Carmack]], suggested that if the author had been required to distribute the changes he made to the code, then it would have been more likely that others would have had copies of the source. As a result, id Software re-licensed the source code for Doom under the terms of the {{wp|GNU General Public License|GPL}} on [[Timeline#1999|October 3, 1999]]. Many existing source ports followed suit by obtaining permission from their copyright holders to re-license their work.
== See also ==
[[Category:Historical]]