- A new boss monster: The Kingpin
- Many new and improved maps
- Greatly improved HLSP and Opposing Force storyline support
- Half-Life: Uplink co-op
- Lots of powerful new mapping features
- Tons of bug fixes and changes (e.g. Shock rifle secondary fire can now charge player HEV suits)
- AI improvements
- All-new custom sounds for the Bodyguard


Sven Co-op is a Co-operative based game for Valve Software’s Half-Life, in which players must work together against computer-controlled enemies and solve puzzles as a team. Since its initial release in January, 1999, over one thousand custom co-operative scenarios have been created for the mod. Sven Co-op also allows the Half-Life, Half-Life: Uplink and Opposing Force single-player campaigns, and also Neil Manke’s They Hunger, to be played co-operatively.