Odyssey Sim provides a physics-based, modular simulation environment for maritime operations. Its 3D virtual world platform includes customizable terrains, real-time environmental updates and dynamic ocean effects. By integrating hydrodynamic solvers and sensor emulation microservices with the virtual world platform, Odyssey Sim supports realistic mission execution, vehicle design assessment and system testing. Its hybrid configuration enables seamless transitions between virtual and hardware-in-the-loop operations.