Send variable to EV3 via WiFi I'm trying to connect my EV3 via Wifi to my Unity game. Is there a simple way to send a command to the EV3?

I gave the EV3 a fixed IP and I'm getting the broadcast which the device is sending. So there is a connection. Can I send a variable or something to my EV3?
First, you need to learn how to make a TCP connection to your EV3. There is a good guide on this here.

Then you need to learn about EV3 VM bytecodes and how to send direct commands.

Since you are using Unity, you may be able to use a pre-existing library such as the MonoBrick Communication Library or the Brian Peek library.

To send a variable, you need to use mailbox commands along with "Messaging" blocks in the EV3-G software.