Adrenaline Gamer is a full Half-Life Deathmatch replacement mod and is considered to be the OSP mod for Half-Life. For those of you who are unfamiliar with Adrenaline Gamer, think of it as an extension to HLDM which offers more choices, more control, more options, more features... and ultimately more fun!
To install it : - 1. Half-Life 1 must be installed on your computer, with Steam. - 2. Run the file downloaded ag_66.exe to install the files in your Half-Life folder. - 3. Restart Steam. - 4. You can now play Adrenaline Gamer.