It's a game about making potions.
Press "Turn Crank" to generate energy, then you can go from there.
A golem is an animated clay construct. In Potion Factory, they are your loyal servants. Your number of golems is the number of actions you can perform simultaneously.
The Automate button consumes one golem and automatically performs that action / crafts that recipe once per second.
This means the game is not currently in focus in your browser, and your resource gathering / crafting MAY be slowed slightly due to browser throttling. I've done my best to avoid this though.