Editing Build (game engine) (section)

=== ''Duke Nukem 3D'' source release ===
On April 1, 2003, after several years of claims to the contrary, 3D Realms released the source code to ''Duke Nukem 3D'' under the [[GNU General Public License|GPL-2.0-or-later]] license.<ref>{{cite web|url=https://www.iconbar.com/articles/Duke_Nukem_3D_on_RISC_OS/index796.html|title=Duke Nukem 3D on RISC OS?|first=Jeffrey|last=Lee|date=2003-04-04|access-date=2024-07-14|website=Icon Bar}}</ref> Not long afterwards, both [[Ryan C. Gordon]] (icculus) and Jonathon Fowler (JonoF) created and released source ports of the game, including the Build Engine. It was possible to play ''Duke Nukem 3D'' well on the NT line of Windows (including Windows 2000/XP) and on [[Linux]] and other [[Unix]] operating systems, and interest in the source ports soared.