The main goal in 100 Doors is to escape the room. Using all the possibilities of the device you need to open each of 100 doors and move the doors to the next Level.
Search for hidden objects, solve puzzles and use an items to do this!
Solution :
In this level you need to forge a key
Take the ingot beside the right barrel.
Take the nipper in the higher left corner.
Put the ingot in your inventory and tap the crucible near the fire.
Tap the nipper in your inventory and move the crucible in the the fire to melt the ingot.
Tap the melt ingot in your inventory and tap the mold on the table.
Tap the mold and tap the barrel to cool down the key.