Read the wind.
Ride the tide.
A sailing simulator where two layers of real physics — a shifting breeze and a breathing tide — decide every meter. You only set the course and trim the sail.
HDG 042° · WIND 11kn 000° · TIDE ×1.24 · EFF 86%
Two layers of physics
The wind decides. The tide argues.
Every hull movement is the sum of two vector fields. Master one and the other still moves you — the same breeze sails differently at flood and at ebb.
🪁 The pink wind
Steady, oscillating, sheared or gust-laned. Point straight into it and you stall in the no-go zone — tack across it to climb upwind.
🌊 The green tide
Currents run beneath the wind and breathe on their own cycle. The rip drags your hull whether you like it or not — ride the flood, dodge the ebb.
How it plays
Two controls, one honest race.
Steer with the helm
Drag the compass dial to set your course. The bow carves toward it — it can't turn on a coin.
Trim the sheet
Slide the sail to the orange mark for full power. The perfect angle drifts with every shift.
Round every mark
Thread the glowing gates and cross the line — scored against a computed ideal run for your exact weather.
What you get
A full harbor, all on your device.
From a sheltered lagoon warm-up to a wind-against-tide rip at the headland.
Every run records an exact silhouette. Race your own best or the club boats — asynchronously, no servers.
Design your own wind patterns and tide cycles, save presets, and test-sail them in open water.
Your line laid over the ideal, every helm and trim call scored, drift losses in meters, a scrubbing race clock.
Finishes pay pearls; spend them on hull liveries and cockpit instruments — information and paint, never speed.
Ratings for light air, shifty wind, heavy air and strong tide, plus milestones earned on objective metrics.
No luck. No servers. No pay-to-win.
Wind, tide and the ideal line are one deterministic model — the same conditions and the same hands always sail the same race. That's what makes every time in your logbook worth comparing.