Survival Engine Online extends the original Survival Engine into a fully multiplayer experience using Mirror networking. It allows players to explore, craft, build, farm, fish, and survive together in a shared online world. The asset includes synchronization for player actions, inventories, AI, and environmental systems. It supports co-op gameplay with smooth server-client communication and flexible customization for survival or sandbox-style games. Whether you're building an MMO survival project or a small co-op adventure, Survival Engine Online provides the essential multiplayer foundation with optimized performance and ready-to-use systems.