Hello,

Thank you for releasing Planet of Lana on GOG. Please consider implementing GOG Galaxy achievements, many people also like to unlock achievements on the GOG platform and show them to friends, also providing more publicity for the game.

There are two ways to do this:
1) Via the native Galaxy SDK: https://docs.gog.com/sdk/
2) Via the Steam SDK Wrapper: https://docs.gog.com/steam-sdk-wrapper/

Thank you for your consideration.