: Features a mission editor for custom weather/objectives and realistic water physics that affect ship handling. Minimum System Requirements Requirement Windows Vista/7/8 (64-bit required) Intel i3 2.6 GHz or equivalent

: Earn money by completing missions to purchase new ships and expand your fleet. Minimum System Requirements

This sounds like a placebo, but hear the technical logic out. The original European Ship Simulator has a bug where the physics tick rate is tied to the DRM handshake. If the DRM server is slow (or if you're offline), the water simulation drops to 30Hz.