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    • Half-Life SDK updated to compile under VS2019 and 2022. Check README.md for more information.
      C++
      Other
      146384415Updated Nov 8, 2024Nov 8, 2024
    • Half-Life: Opposing Force SDK based on Half-Life Updated, with bug fixes. Check README.md for more information.
      C++
      Other
      287221Updated Sep 1, 2024Sep 1, 2024
    • Half-Life: Blue Shift SDK based on Half-Life Updated, with bug fixes. Check README.md for more information.
      C++
      Other
      122710Updated Sep 1, 2024Sep 1, 2024
    • Half-Life Updated SDK with Opposing Force and Blue Shift merged in, along with other improvements. Check README.md for more information.
      C++
      Other
      26147732Updated Aug 12, 2024Aug 12, 2024
    • HLAM-prototypes

      Public archive
      C++ program that contains 4 prototypes developed for Half-Life Asset Manager. See README.md for more information
      C++
      MIT License
      0000Updated May 29, 2024May 29, 2024
    • Half-Life SDK with code tutorials/samples (usually for TWHL's Half-Life Programming Book).
      C++
      Other
      146000Updated May 3, 2024May 3, 2024
    • Asset sources for the Half-Life Unified SDK. See https://github.com/twhl-community/halflife-unified-sdk
      Batchfile
      MIT License
      48130Updated Apr 28, 2024Apr 28, 2024
    • Cross-platform Half-Life 1 map decompiler
      C#
      GNU General Public License v2.0
      76532Updated Mar 6, 2024Mar 6, 2024
    • Tools for the Half-Life Unified SDK written in C#.
      C#
      MIT License
      31300Updated Jan 14, 2024Jan 14, 2024
    • SlackillerDownloads

      Public archive
      All files hosted on Slackiller
      0000Updated Oct 24, 2023Oct 24, 2023
    • VHLT-V34

      Public archive
      VHLT V34 source code. Check the branches for versions with ifdefs removed for easier reading
      C++
      41200Updated Oct 24, 2023Oct 24, 2023
    • OldValveReleases

      Public archive
      Old Valve source code and documentation releases. See the Releases page for the files
      0100Updated Oct 24, 2023Oct 24, 2023
    • HalfLifeSDKHistory

      Public archive
      Contains the source code for the Half-Life 1 SDK as a series of commits chronicling its history. Contains three branches: singleplayer, multiplayer and 2.3-diff (changes made to go from multiplayer to singleplayer)
      C++
      Other
      0200Updated Aug 15, 2023Aug 15, 2023
    • Small tool to get the error code returned by LoadLibrary when it fails to load a library
      C#
      MIT License
      0500Updated Aug 13, 2023Aug 13, 2023
    • ChangeBSPTextures

      Public archive
      Example program showing how to edit textures in BSP files. Not intended for direct use!
      C#
      MIT License
      0100Updated Feb 27, 2023Feb 27, 2023
    • halflife-2_3

      Public archive
      Half-Life Singleplayer SDK 2.3, updated to compile with Visual Studio 2019. Provided as-is with no further support. See the README for more information.
      C++
      3700Updated Mar 21, 2022Mar 21, 2022
    • czeror-sdk

      Public archive
      Condition Zero Deleted Scenes SDK. Contains trigger_sequence and the material system only
      C++
      Other
      41700Updated Jan 11, 2022Jan 11, 2022
    • dmc-updated

      Public archive
      Deathmatch Classic projects updated to compile with VS2019. No further development and support will be provided. See this page for more information: https://github.com/Solokiller/halflife-updated/wiki/About
      C++
      Other
      61000Updated Dec 22, 2021Dec 22, 2021
    • ricochet-updated

      Public archive
      Ricochet projects updated to compile with VS2019. No further development and support will be provided. See this page for more information: https://github.com/Solokiller/halflife-updated/wiki/About
      C++
      Other
      31000Updated Dec 22, 2021Dec 22, 2021