So I am trying to make a Troop battle game. I am new to libGDX so I just want some help with some basic stuff like player mouvment sounds and graphics.

@gerrycraft , the Writing forum is the wrong place to post your request for tutoring(?). Your thread has been moved to the For Beginners forum. Please familiarize yourself with our different forums' topics, and before posting again, review our community guidelines. Good luck with your endeavours, and welcome to gamedev.net.

In general, first do a few tutorials with libGDX to get an understanding of it.

Spending time to understand it makes the software understandable, you know what it can accept and how it will react. That makes programming the game much simpler as you can reason why it works or doesn't work.

For general topics, such as sound in libGDX, just search on those words. The internet knows a lot. Basically, as soon as you hit a problem that is not highly specific, it's a safe bet someone ran into it before, and asked questions, blogged about, or a tutorial for it exists. Search engines are quite good at finding these things if you feed them the keywords.

EDIT: For a next time, try to make the topic of a post more precise, “help with X” can mean anything, from installing to modifying an existing game to making a new game. By using a more specific title, you improve your chances to get the specific people that know the topic, and can help you.