Elevator

You have accidentally been trapped inside an apartment. Within the apartment, you can explore various rooms and furniture by left-clicking on them (furniture that can be explored will emit a green light). Through exploration, you can discover what items are inside each furniture.

You can collect these items in your inventory and use them by right-clicking on them, or try combining them in the crafting tab located in the bottom right corner of the screen to create higher-tier items. To craft, left-click on the items in your inventory, set the desired quantity, and press the craft button.