Sven Co-op makes the original Half-Life 1 campaign, plus many others, playable in co-op. 'We're looking forward to working with one of the greatest game engines ever made, and we can assure everyone that there are many, many more updates to come.' 'We are grateful beyond expression to Valve for their generosity and efforts put forth to make this possible,' the Sven Co-op team wrote on its forum (via Kotaku). SteamPipe integration means updates will be swifter, and complete control over the engine means the game will be better all round. Also includes an exciting multiplayer mode that allows you to play. The entire Half-Life campaign (tweaked for two-person co-op) will be thrown in for free, so you won't need to buy any other Half-Life games in order to play (as you do now). Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. The team has the go-ahead to work on a custom version of the Half-Life engine for its co-op-enabling - and much more - mod.

Nearly 15 years later, Valve's thrown a Half-Life 1 modding team a bone - Sven Co-op is to become a free, standalone game.

Mods de half life 1