This is an online version of an actual Escape Room.
You can look around the room 360º by dragging the view, much like Google Street View. Then, you can click on some objects to get a closer view. There is a limited inventory for grabbing items and putting them in places, but most achievements are via opening number/letter locks and pushing buttons.
It is well-themed on Alice in Wonderland and would have been a nice Room to do in-person. Not too difficult for experienced Escapers.