Amber Bricks:
Gold Blocks are Amber blocks.
Amber in the furnace will give you Amber Glass. It looks kinda weird when in your inventory, but it become transparent when placed.
You can use the Exoskeleton dropped by Beetles to make some Exoskeleton armor. This can’t be worn yet though, unfortunatly.
Raw foods can be cooked, easy enough.
Recipe for the Activator: