Sven Co-op is a Modification for the original Half Life™ (
Not Half Life: Source.)
The mod is free and can be found in the Steam store. Try it out!
The mod allows custom maps, models, textures, Playermodels and weapons in the game for personal single-player use or Multi-player use.




As you can see the Game is very customizable with its maps and playermodels.
The game also features a color slider for original HL:DMS playermodels Like Robo, scientist, Helmet, and Gordon. But i couldn't find pictures for it.

The mod includes a Wide selection of maps already including Opposing force (if it's currently owned on the PC) and Half life, Meaning you can Co-op the Campaigns!
Each map is edited to have twice as many enemies, have the occasional Gonome, And more objects to block your path so the game requires more Teamwork. And no one has to do all the work!
To load the next level ALL enemies must be killed (this excludes Barnacles and Xen Trees. Along with tentacles) And all players have to be at the end in most cases.
Friendly-Fire is also disabled So nobody can Teamkill and Accidentals Don't happen!
You can donate 5 Dollars for the Electric Crowbar (right click with crowbar to activate) Which deals plenty more damage. You can donate 6 Dollars or more for the Golden Uzi's which have an option for the skin in... well.... your options. They deal plenty more damage as well.
The game is great and online too, obviously. Downloads will be at the end.
Gallery:






AfrikaCorps


Downloads:
http://www.svencoop.com/files.phphttp://scmapdb.com/http://www.moddb.com/mods/sven-co-ophttp://store.steampowered.com/app/70/http://store.steampowered.com/app/50/