[2021] Buttons?

Are you using an Xbox controller? The UI should switch over to Xbox control buttons as soon as you have your controller connected and clicked a button. If it doesn't there's probably something wrong with the connection. If you've checked and your controller is working on other games send in a report to support.secondextinctiongame.com so they can have a look. We haven't heard of this issue before so would have to dig a little deeper.