Alternatives and similar repositories for main

Users that are interested in main are comparing it to the libraries listed below

• VeraVisions / nuclide
  Software Development Kit for id Tech
  ☆128Updated 2 weeks ago
• TheEnbyWitch / LunarViewer
  A model viewer for Quake 1 and Hexen 2
  ☆55Updated last year
• icculus / steamshim
  A workaround for GPL software that wants to use the Steamworks SDK.
  ☆82Updated 4 years ago
• PadWorld-Entertainment / worldofpadman
  World of PADMAN game repository
  ☆57Updated this week
• Q3Rally-Team / q3rally
  Open-source survival racing game on the ioquake3 engine.
  ☆58Updated last week
• PolyhedronStudio / Polyhedron-Engine
  Heavily modified engine fork of Nvidia's Q2RTX. https://discord.gg/6Qc6wfmFMR
  ☆30Updated last year
• motorsep / StormEngine2
  Storm Engine 2 (modified RBDoom 3 BFG game engine)
  ☆85Updated 2 years ago
• codereader / DarkRadiant
  DarkRadiant is the map editor for The Dark Mod and other idTech4/Doom3-based games
  ☆165Updated 11 months ago
• Subject9x / battleMETAL
  A Total-conversion-mod for the DarkPlaces engine all about mecha combat. See website for more info:
  ☆52Updated 2 months ago
• shpuld / sui-qc
  Simple QuakeC (MenuQC) UI system for FTEQW
  ☆33Updated last year
• tomatenquark / code
  The code that powers Tomatenquark
  ☆35Updated 4 years ago
• RobertBeckebans / TrenchBroomBFG
  TrenchBroom for DOOM 3 (BFG)
  ☆51Updated 2 months ago
• QuakeEngines / QuakeEngines.github.io
  Structured List of Quake Engines
  ☆28Updated 2 years ago
• OSS-Cosmic / AmnesiaTheDarkDescent
  ☆66Updated last year
• clover-moe / mm3d
  Maverick Model 3D is a 3D model editor and animator for games.
  ☆130Updated last year
• eukara / freetfc
  Clean-room reimplementation of Team Fortress Classic in QuakeC.
  ☆26Updated last year
• quakeforge / quakeforge
  ☆57Updated 3 weeks ago
• noire-dev / sourcetech
  SourceTech engine. The engine is frozen for a while, the memory allocator needs to be reworked!
  ☆33Updated this week
• osen / openradiant
  A Quake III level editor that can be used with any engine
  ☆29Updated 4 years ago
• dhewm / dhewm3-sdk
  An SDK to create Mods for dhewm3
  ☆70Updated 8 months ago
• DanielGibson / SkinDeep
  Unofficial Linux port of the SkinDeep source code
  ☆12Updated 4 months ago
• Paril / quake2c
  Quake II game DLL that runs a QuakeC VM
  ☆20Updated 4 years ago
• alienarena / alienarena
  Ultra fast-paced arena FPS game
  ☆32Updated 8 months ago
• Official3DRealms / wrath-darkplaces
  ☆29Updated last year
• FaultyRAM / Ut99PubSrc
  The Unreal Tournament v432 public source distribution, fixed for modern compilers.
  ☆44Updated 8 years ago
• BanceDev / QuakePrism
  A game engine editor for the Quake engine designed to modernize and streamline the development process for mods and games.
  ☆48Updated 3 weeks ago
• clover-moe / mint-arena
  Spearmint Quake 3 and Team Arena game code.
  ☆40Updated last month
• KurtLoeffler / Slipgate
  A Quake engine source port based on Quakespasm, intended for standalone game development.
  ☆31Updated 5 years ago
• xonotic / netradiant
  Mirror of https://gitlab.com/xonotic/netradiant - The open source, cross platform level editor for idtech games (GtkRadiant fork)
  ☆27Updated this week
• TheDushan / OpenWolf-Engine
  Heavy modified idTech3 engine
  ☆27Updated 7 months ago