- Home: https://zdoom.org/index, https://web.archive.org/web/20151014204540/http://www.osnanet.de/c.oelckers/gzdoom/
- Inspiration: Doom, Doom II, Heretic, Hexen
- State: mature
- Download: https://zdoom.org/downloads
- Platform: Windows, Linux, macOS
- Keyword: action, remake, content commercial + original required, first-person, shooter
- Code repository: https://github.com/ZDoom/gzdoom.git (@created 2013, @stars 1613, @forks 422)
- Code language: C, C++
- Code license: GPL-3.0
- Developer: 3saster, "Alexander Kromm (m8f)", alexey.lysiuk, Alison Watson, "Alison Watson (Nightdive Studios)", argv-minus-one, arrowgent, Benjamin Moir, Blue-Shadow, Braden Obrzut, Cacodemon345, Chernoskill, Christoph Oelckers, Christopher Bruns, Chronos Ouroboros, Colton G. Rushton, David CARLIER, dondiego, Ed the Bat, Edoardo Prezioso, "Edward Richardson (Nightdive Studios)", Eevee, Emile Belanger, emmy, Erick Tenorio, FishyClockwork, Gaerzi, Gutawer, inkoalawetrust, j-palomo, Jordon Moss, JP LeBreton, K0stov, kcat, Kevin Caccamo, Kyle Evans, Leonard2, Lucy Phipps, Maarten Lensink, Magnus Norddahl, MajorCooke, Marisa Heit, Marisa Kirisame, Marisa the Magician, MaxED, Michael Labbe, mykola-ambar, Nash Muhandes, Nemrtvi, nukeykt, Player701, raa-eruanna, Rachael Alexanderson, RaveYard, Ricardo Luís Vaz Silva, SanyaWaffles, Shawn Walker-Salas, Shiny Metagross, Sterling Parker, svdijk, Teemu Piippo, Thomas Hume, vanhofen, Vitaly Novichkov, William Breathitt Gray, Xaser Acheron, yqco, Zain Aamer, ZZYZX
- Build system: CMake