Factory Business is a free simulation game for Android developed by Gao Zhuoyan. The game allows you to experience the workings of an industrial machine and aims to help you become a factory trillionaire.

The game features upgrading machines to process logs and produce more lumber products, which you can sell to make a profit. The more you sell, the more money you make, which you can use to upgrade your machines further. As you progress in the game, you can also hire workers to help you manage your factory and increase production.

Factory Business is an engaging game that offers a fun and unique simulation experience. The game's graphics and sound effects are impressive and add to the overall immersive experience. If you're a fan of simulation games, then Factory Business is definitely worth checking out.