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nordic tug docking sim

A free physics simulation — play it in your browser, no install. A physics-based docking simulator for a single-screw Nordic Tug — choose the 34 (bow thruster) or the 44 (bow & stern thrusters).

by @rlibbert · rlibbert/nordic-tug-docking-sim on GitHubLANG HTMLHOSTED ON RLIBBERT.GITHUB.IOUPDATED 21 Sep 2026

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Controls: Throttle ahead / astern: w / S or ↑ / ↓ · Throttle to neutral: x

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From the README

A physics-based docking simulator for a single-screw Nordic Tug. Bring her alongside a tight marina slip using a throttle, a rudder, and one or two thrusters — no autopilot, no shortcuts.

Single-screw boat handling has a few quirks that don't show up in arcade boat games but matter a lot at the dock: the propeller doesn't just push straight, the rudder is useless without water moving past it, and a thruster runs out of authority the moment you're making any real way.

Read the full README on GitHub →

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