The goal for this project is to become a generic Half-Life co-op mod which is easy to customize. Default content and gameplay will stay faithful to classic Half-Life. That means there won't be any: tacticool weapons, HD models, bullet-sponge enemies, etc. This isn't strictly a Sven Co-op clone, but recreating its entities and features is a high priority because nearly all GoldSrc co-op maps were made for sven.
View project status here.
This repo was forked from an early version of halflife-updated (Nov 2021).
If you're a player, you don't need to install this. Vanilla Half-Life clients are able to play on SevenKewp servers with a few limitations. You can see what's been added to the SevenKewp client in the Client Features wiki. The client is not compatible with the steam_legacy beta branch.
Executables distributed outside of Steam are subject to Valve Anti-Cheat (VAC) detection. Running this client may trigger VAC protections and result in a permanent VAC ban on your Steam account.
That said, I haven't seen anyone banned for using the HLBugfixed and Adrenaline Gamer clients for the ~3 years VAC was enabled on my server. According to my understanding of the VAC documentation, executables need to be manually reported as cheats to Valve for their signatures to be detected. I have not added cheats to this client. Any features that could give you an advantage in PvP are disabled in servers that don't have SevenKewp server mods.
As of 2026/08/26, I disabled VAC on my server to allow in players who were banned for experimenting with mods like ReShade in co-op servers. No one was banned for using the SevenKewp client since its release last year.
The server doesn't have any release binaries available yet. You can try downloading binaries from the Actions tab but you'll likely need to build everything yourself, especially on Linux. There are some basic instructions in the Server Setup wiki.
Make an issue if you have trouble. I might not be very helpful until there's an official release, but I'd like to know what issues people are having.