MikeRS
Junior Member
Posts: 216
Registered: 06-05 |
Linux Doom said:
BTW, Dont all Doom Source Ports have to be GPL?
Technically, no. It was originally released under the Doom Public License, which prohibits commercial use and doesn't require the source code to be released. Since sometime in 1999, port authors could optionally use the GPLv2 instead, which allows commercial use and requires the source code to be released (so kind of the opposite of the DPL); most ports decide to go with the GPL, though some (ZDoom is one) choose to stay with the original.
In a more hypothetical situation, you could write an engine entirely from scratch (no code from id Software whatsoever) compatible with Doom, and release it under whatever license you like, be it the ISC License, GPL, or a proprietary one.
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