Game development software

I think the most popular are Unity, Unreal, Godot and O3DF (was Amazon Lumbaryard).

Pretty sure if you do a search you'll find more.

You might also want to check this thread for gamedev materials

It really depends on what you want to achieve. If you want to learn how to make games and don't have anything particular in mind Unity is the best - it's the combain with which you can do almost anything. Also - most of the little indie games are made on Unity, so I suppose it is easy to learn. I personally work on Unreal for almost 10 years and it is very good, if you want to make a 3D game. It also has Blueprints, which are visual representation of code, and are easier to learn then coding. On the other side, making a 2D game in Unreal is like driving nails with microscope. You can do this, but is a waste of a microscope.

If you think about going into game industry proffesionally, Unity or Unreal are best to learn - a lot of a studios use them, and even if they dont, they are using more or less similar stuff. + there are tones of tutorials for both of them.

If you have particular genre in mind there are things build for specific games. Like Adventure Game Studio, which is free and made specifically to support adventure games. It is very focused on it's genre, and you won't do much more with it, but I know whole studios build on it.