Closing Doors is a novel idea and has the name says, your only objective is to close doors. To tell more of it will be to spoil it, and due to it's rather short nature, you better off playing it. Recommended and would love to see what else is coming. The devs also have an upcoming game on Steam so you can wishlist it. If you want to check how it runs on Steam Deck just press the link below:

https://youtu.be/MR4kvM14BTM