TravianZ is a self-hosted multiplayer browser strategy game server, a clone of the popular Travian game. It implements the complete game loop: village building, resource production, troop training, combat, hero system (T4), alliance management with bonuses, market trading, world wonders, and an admin panel for server management. The architecture is a PHP 8.3+/MySQL monolith with procedural entry points and class-based game logic. Key systems include a trait-based database layer (Database.php split into domain-specific traits), a cron-like automation engine (Automation.php split into traits), and a templating system using .tpl files. Features include support for 9 tribes, multi-language (English, French, Italian, Romanian, Chinese), Docker deployment, and an admin panel with CSRF protection and logging. The codebase has undergone significant refactoring from an older codebase, but still retains global state, mixed SQL access patterns (prepared statements alongside raw queries), and legacy JavaScript (MooTools). It is actively maintained with documented bug fixes and performance optimizations.