Firefly Studios generally holds the Intellectual Property (IP) rights to the Stronghold name and assets. While many developers allow "fan projects" to exist, they can issue DMCA takedown notices if a private server: Charges real money for access. Distributes the game's copyrighted assets illegally. Negatively impacts the official game's revenue.

Be cautious of websites claiming to offer "Private Server" downloads for Stronghold Kingdoms . Since the game logic is proprietary and server-side, such downloads are frequently malware or "trojan injectors" designed to steal account data. Stronghold Kingdoms

Private servers for Stronghold Kingdoms are typically built using a combination of technologies, including: