Play Half-Life with friends! Players fight computer-controlled monsters through the original Half-Life storyline or hundreds of available co-operative scenarios. Also includes a plethora of new weapons, enemies, visuals and gameplay systems. Customization features allow each map to use its own unique weapons and enemies.

RSS Reviews  (0 - 10 of 1,197)

Half-Life was one of a kind. Other than the extraordinary story, it had great gameplay and amazing graphics (for the late 1990's).
Now, you can play it with a friend.
Can you ask for more?

This mod is badass thats all i can say

This mod was something new and still is playing best fps ever made with friends what more can you want.

Sven Co-op is absolutely awesome. We played it a LOT on LAN parties and it was always fun.

Just EPIC!!!

The best HL1 coop experience there is.

Just Beautiful!


This mod is absolutely amazing. I played it years ago and it was so fun. I looked forward to it everyday and it still brings back amazing memories.

Today. Yes there might not be a lot of players on... but I bought a server exclusively for me and my friends, and it is still the best mod co op game (possibly game alone) i have ever played it.

Good job guys.

Has over 1,000 downloadable maps to play! Also has a AoM server ran by Cocyx, which is great. I love this mod. I would run it and create my own listen server on a loaded christmas map to keep me in the holiday mood