Comment by cokernel

This puzzle game engine was written by Stephen Lavelle, who may be best known for Stephen's Sausage Roll.

Here's Sokogoban, a cute recent game made with the engine:

https://www.puzzlescript.net/play.html?p=8726ac1f3addfe42cc5...

I recommend clicking the "hack" link at the bottom to see the code for the game.