Downloads - Ultimate Definition mod for Half-Life: Source

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Ultimate Definition 1.6

Dec 25 2018 Full Version 15 comments

This is my own Unofficial Update to - Half-Life Source - Ultimate Definition 1.5 I did not create these mods, but I packed several of them together. In...

ultimate definition 1.6 full version

Ultimate Definition 1.5

Aug 23 2012 Full Version 44 comments

this is a combination of HL: S enhanced and HL: S evolution

ultimate definition 1.5 full version

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