Five Scarabs

Nice, quick interface! You could really make a full-fledged Scumm-style game this way. A quick point of feedback for improvement - to use an item in the inventory with something in the scene, perhaps you can say something like "To use an item with something in the scene, use it first in the inventory and then click on the item in the scene.". There are also possibilities to use items in isolation without combining them with something in the inventory or the scene.