SharpPath

SharpPath is a GameMaker Studio extension that provides asynchronous, grid-based pathfinding for GMS. Essentially, it processes the pathfinding algorithm asynchronously, which can potentially boost performance (when comparing it to GameMaker native pathfinding mechanisms), specially in situations with large maps or many concurrent executions (like when many enemies are chasing the player).

There are two files avaliable, one containing only the extension files, and one with an additional example project.

You can also find the source code and further info in the project's GitHub repository.