The Survarium community is passionate but small. There are maybe 5,000 people globally who would play a private server. A skilled developer can make $100k/year working on a World of Warcraft private server (via donations). A Survarium server would net them maybe $500.
If you meant a paper design / documentation for reverse-engineering Survarium’s network protocol — that doesn’t exist publicly. Survarium used proprietary Vostok engine code and heavy server-side logic, so no emulator has surfaced. Survarium Private Server
As of May 2026, there is that replicates the original multiplayer experience. However, there are ongoing efforts and historical projects aimed at preservation: The Survarium community is passionate but small