The 4Story protocol is a stateful, session-based binary protocol. A connection lifecycle:
In 2025, a team of Russian developers released a of the complete 4Story server (C++ with Boost libraries). This has led to a new wave of modernizations: 4story server files
Windows Server (2016 or newer) or Windows 10/11 for local development. The 4Story protocol is a stateful, session-based binary
Alternatively, if your server files package includes .bak files, right-click -> Restore Database -> Select the device backup file -> Restore. The 4Story protocol is a stateful