GKS2 isn't a concept anymore! I've got the sprites to work, and a functional travel system! Might add more rooms and items in the future, maybe an exit to leave the place and enter some sort of courtyard.

Planned features:

-Functional dialogue

-Cutscenes

-Other people you can talk to

A screenshot of what is to come. Continues after he gets the key and (finally) exits the door in GKS1.