This is an easy level to get through, not as easy as the previous walkthrough, and not as tough as the ones you are about to
read on. 100 floors have always been a game that challenges you in a different way but 31 level is quite interesting and different from the others.
Just follow the steps and thank us later.
Step 1- Use the screwdriver


Use the screwdriver from the inventory
Step 2- Unscrew


Unscrew the two screws
Step 3 – Rotate the sign counterclockwise


Once the unscrewing is done, rotate the sign counterclockwise
Door Open


Door open. You can now access the next level.
Check out more 100 floors walkthroughs below –
100 Floors Walkthrough (Level 41 – 60)