If you ignore the legal advice and search for random download links, here is what you are risking:
A fully portable, non‑Steam Deathmatch Classic installation. You can copy it to any PC, even without an internet connection. deathmatch classic download non steam
The Internet Archive is a digital library that provides access to software, music, websites, and more. Sometimes, classic games like Deathmatch Classic or their demos are available here. If you ignore the legal advice and search
When downloading and playing Deathmatch Classic, players may also want to consider the following tips: and more. Sometimes
Here is the catch: Most public servers use . VAC rejects non-Steam clients. So where can you play?