A little challenging and a little entertaining, this game is totally a time killer! How to play:Unscrew all the metal plates by unlocking the pins from the board;There are tricky levels, such as keys, remember to pick the key;If you find the space insufficient, just unlock more holes or use a hint.Logic and order are important. One wrong move could result in dead-end. Game features:Customizable plates and screws;Easy to play but challenging to master;Train your brain of all ages;Use your wisdom and pride yourself on the global leaderboard.If you are a puzzle game lover, you can’t miss this game. Download and try Screw Master-Pin Puzzle!