Pre-release build of Half-Life, dedicated to the closed playtests of multiplayer game mode. Have some differences compared to retail version (Playable cut Xen and Co-op maps for example). Early Worldcraft and other tools are also included.

Build Version: 722, Oct 16 1998
Platform: PC
Language: English
System Requirements: Same as retail Half-Life

Features:
1) Pre-Installed.
2) Patched hl.exe. System date and woncomm check skip.

Instructions:
1) Unpack main ZIP archive;
2) Launch hl.exe.

Thanks to DmitRex for creating a patch.