2D nautical simulation: skipper a sailing yacht across the North Sea Traffic Separation Schemes at night. Navigate dense cargo traffic using only AIS vectors. Core mechanics include CPA detection, an entropy-based adaptive Director, COLREGs Rule 10 heading scoring, and a tidal current model backed by a pre-processed BSH atlas. In development.

A playable prototype is at itch.io.

The departure is in IJmuiden, then you have to set crossing heading west toward the UK. Underway, you need to monitor the AIS to avoid collisions. The player also has to make course decisions to cross the TSS lanes at 90° heading. The goal is to reach Harwich. A crossing takes roughly 5–15 minutes of real time depending on difficulty.