SAILIGATEPUBLIC BETA
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ABOUT SAILIGATE

A sailing world that keeps going.

Sailigate is a browser-based persistent sailing game built around long voyages, real-time movement, real forecast conditions and an account that remembers the history of your fleet.

Real time

Passage time is real time. There is no global fast-forward button that compresses an ocean crossing into a few minutes.

Persistent vessels

Position, resources, condition, crew, voyage state and progression are saved to the Sailigate account backend and continue across sessions.

Simulation-informed

Wind angle, vessel characteristics, sea state, crew and maintenance all influence the experience while remaining understandable as a game.

Career progression

Ports act as hubs for jobs, provisioning, crew and fleet growth. Passage history and achievements give long voyages a permanent record.

WEATHER & OCEAN DATA

How Sailigate gets wind and wave conditions

The Sailigate server periodically checks ECMWF Open Data for the newest usable forecast cycle. It downloads global forecast fields, validates them, converts them into compact game datasets and serves a shared forecast to every player. The browser then interpolates the surrounding grid values for the vessel's position and forecast time.

  • WindECMWF IFS 10 m U/V wind components
  • WavesECMWF IFS-WAM significant height, mean period and direction
  • ResolutionNative 0.25° global game dataset
  • Window48-hour forecast, sampled in 3-hour slices
  • RefreshServer checks regularly and keeps the last validated dataset on failure
ECMWF ATTRIBUTION

Forecast-data licence and acknowledgement

This service is based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF).

© 2026 European Centre for Medium-Range Weather Forecasts (ECMWF). ECMWF Open Data is published under the Creative Commons Attribution 4.0 International licence (CC BY 4.0). Sailigate modifies, interpolates, quantizes and reformats forecast material for simulation and display.

ECMWF provides its data without accepting responsibility for errors, omissions, availability, or losses arising from use of the data. Sailigate is an independent project and is not endorsed by ECMWF.

Source: ecmwf.int · Licence: CC BY 4.0 · Terms: ECMWF Open Data terms