Unity. Go download it and watch some tutorials on YouTube. I recommend someone like Brackeys. Pick a game making series and follow along. You'll very quickly get an understanding of how to do things and can go from there.

This is a popular enough way of doing it that it exists for most of the popular engines. Unity just tends to have the most.

You can start here: https://www.youtube.com/watch?v=j48LtUkZRjU&list=PLPV2KyIb3j...