Plain physics in Screw Master is the main thing. i found it really hard at first.
Step into this game, just start fiddling with the controls.
Drag, rotate, and click are the main actions. The puzzles are tricky and make you think twice.
Most focusing on loose bolts is key. They are clues for where things need to go.
Q: What are the controls? A: Drag, rotate, and click.
Q: What is the objective? A: Solve puzzles using physics.
Q: Are there any stated features? A: Not stated.
Q: What is the main mechanic? A: Physics interaction with pieces.
