Alternatives and similar repositories for source-2003

Users that are interested in source-2003 are comparing it to the libraries listed below

• Source-SDK-Resources / source-sdk-vs2022
  Source 2013 for VS2022
  ☆49Updated last year
• Source-SDK-Archives / source-sdk-2004
  Original HL2 Source SDK from 2004
  ☆55Updated 4 years ago
• dyanikoglu / source-sdk-bullet-physics
  Bullet Physics Injection for Source SDK 2013
  ☆47Updated 4 years ago
• cstom4994 / SourceEngineRebuild
  Another Source Engine Modified Version with some new features.
  ☆37Updated 3 years ago
• EpicSentry / P2ASW
  The Portal 2 In Alien Swarm Engine project repository
  ☆57Updated last year
• quiverteam / Engine
  Modified Version of Source 2007
  ☆117Updated 4 years ago
• Clepoy3 / LeakNet
  A patch for leaked Half-Life 2 beta from 2003.
  ☆32Updated 6 years ago
• SmileyAG / cstrike15_src-CI
  Leaked CS:GO source code with CI integration
  ☆41Updated 2 years ago
• Source-Authors / Obsoletium
  Modified Source Engine (2018) from Valve 🎮🧩🕹️👾
  ☆43Updated this week
• misyltoad / mini-source-sdk
  A minified version of Source SDK with support for VS 2022
  ☆44Updated last year
• Source-SDK-Resources / source-2013-imgui
  Imgui implementation for Source 2013
  ☆26Updated 4 months ago
• craftablescience / sourcepp
  Several modern C++20 libraries for sanely parsing Valve's formats
  ☆82Updated this week
• misyltoad / VAudio-MiniMP3
  Replacement MP3 playback module for the Source Engine
  ☆50Updated last year
• tmp64 / hl1_source_sdk
  Source SDK for Half-Life 1 (GoldSource)
  ☆36Updated 4 months ago
• Planimeter / hl2sb-src
  Source code to Half-Life 2: Sandbox - A free and open-source sandbox Source engine modification.
  ☆59Updated 11 months ago
• nooodles-ahh / video_services
  A WIP drop-in replacement for Source SDK 2013's video services that plays webms
  ☆34Updated last year
• Source-SDK-Archives / source-sdk-2006-ep1
  Source SDK 2006 for HL2: Episode 1
  ☆28Updated 4 years ago
• EnderZip / source2017engine
  TF2's engine ported to SDK2013MP
  ☆13Updated 4 years ago
• GEEKiDoS / source-hdrbloom
  Ported HDR Bloom(MagicBloom.fx by luluco250)(requires mat_hdr_level 3)
  ☆19Updated 5 years ago
• nillerusr / source-physics
  ☆53Updated last year
• SCell555 / ShaderCompile
  Standalone shadercompile, that doesn't depend on valve libraries and supports x64
  ☆59Updated 2 years ago
• momentum-mod / shaderapivulkan
  Pipedream project aimed at adding Vulkan support to the Source 1 engine.
  ☆14Updated 7 years ago
• Source-SDK-Resources / source-sdk-gameui
  Swarm's GameUI on SDK 2013 MP
  ☆17Updated last year
• Biohazard90 / g-string_2013
  Repository for the Source engine modification G String
  ☆37Updated 5 years ago
• TheOverfloater / pathos-public
  Public release of Pathos Engine
  ☆51Updated this week
• Spirrwell / source-sdk-2013-cmake
  ☆22Updated 8 months ago
• EpicSentry / HL2-CSGO
  An attempt to port Half-Life 2 to the cstrike15_src leak
  ☆24Updated last year
• FreeSlave / vhlt
  Vluzacn's custom build of Zoner's Half Life Tools (ZHLT)
  ☆19Updated 4 years ago
• dougrattman / SourceEngine2007
  Source engine 2007 fork
  ☆32Updated 7 years ago
• Counter-Strike-16 / OpenGoldSrc
  [WIP] Open source cross-platform implementation of GoldSrc engine
  ☆30Updated 8 years ago