You have been exposed to a lot of IO games before. This is a tower defense IO game. In the game, you can place the main base, collect resources, build fortifications, upgrade skills, prevent the monster from destroying the base, and there will be Boos every few rounds. A very playable and time killing game. The game official provides tutorials and can also rank scores with small partners all over the world.
Portal https://yorg.io/
Method
Supports Chinese. There are detailed tutorials on the website!