Downloads - Research and Development mod for Half-Life 2: Episode Two

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Research and Development Patch - Source SDK 2013

Nov 27 2015 Patch 61 comments

This patch fixes most issues related to engine branch incompatibility and is designed to run using the latest "Beta" of Source SDK Base 2013 Singleplayer...

research and development patch - source sdk 2013 patch

Research and Development (installer)

Jul 18 2009 Full Version 50 comments

Updated 17 July 2009, fixed several issues & added a dynamic crosshair when using the keypads & lab buttons. Requires Episode Two.

research and development (installer) full version

Research and Development

Jul 17 2009 Full Version 41 comments

Updated 17 July 2009, fixed several issues & added a dynamic crosshair when using the keypads & lab buttons. Requires Episode Two.

research and development full version

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