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Xash3D FWGS

Half-Life

An open-source GoldSrc engine reimplementation that runs Half-Life and other GoldSrc titles natively on Windows, Linux, BSD and Android, with touch and gamepad input.

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Build environment
Windows · Build tools
Visual Studio
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A note on inclusion

Open-source code does not make game assets free to distribute. Read the project license and maintainer instructions, and supply game files you legally own.