War Thunder does not support true "private servers" in the sense of hosting the entire game database independently, it offers highly customizable Custom Battles and a dedicated Dev Server for testing new features. Custom Battles: The "Private Lobby" Experience
community has whispered about the "Holy Grail" of military sims: a private server. In a game known for its legendary vehicles but equally legendary "grind," the idea of a player-controlled sanctuary—where every tank is unlocked and the rewards are boosted—is a dream many share. The Vision: Why Players Want Out war thunder private server
Because War Thunder is a competitive online game with a centralized server architecture, heavily encrypted game files, and a strict anti-cheat/anti-tamper system, there are no publicly available "custom" private servers (like AzerothCore for WoW) that you can simply download and host. War Thunder does not support true "private servers"
The CDK allows users to create custom missions and "User Missions." You can spawn any tank or plane in the game to test armor values or practice bombing. The Vision: Why Players Want Out Because War