Credits

Last updated: 10 September 2026

Everything in Lockkeeper Games productions is written, designed and built by Karel van Gelderen. This page is where the people who helped, and the material that came from elsewhere, are acknowledged.

Playtesters

These people played Case One before it was ready and told me what was wrong with it. The game is better for every one of them.

Emiel, Janneke, Nathan, Jaap, Peter, another Peter, Britt, Aki, Ella, Jessie, Jos, Zoë, Jeremy, Pieter, Ioanna, Suus, Tom, Stephan and Dennis.

Images

Mytilus (ship), 1976

By RWS-Deltadienst. Source: Beeldbank Rijkswaterstaat, via Wikimedia Commons.
Licensed under CC BY 3.0 NL. Adapted for use in Silence at the North Sea.

Footage

Some of the shots in the trailer come from Pexels, whose licence does not require attribution. We name the creators anyway, because their work made the trailer better.

With thanks to †reny aleksa, Steve B, Ivan S, cottonbro studio, utopia 36, Ron Lach, Annushka Ahuja, buba dra and Alexander Grigorian.

Fonts

Typefaces are self-hosted rather than loaded from a font service, so no visitor data is sent to third parties in order to display this site.

Something missing?

If you believe your work appears here without proper credit, or the credit is wrong, email hq@lockkeeper.world and it will be corrected.