Definitely give Godot a look. It's not as powerful as Unity or Unreal, but it is very beginner friendly. For 2D games, or even basic 3D, I find it to be much more productive and easier to understand.

The Weapons Test build lets you experience all the enemies, weapons, power-ups and explosive combat that Zirthian 1.0 will offer, featuring most of the beautiful final game graphics and sound effects. Improve your flight and combat skills and earn the in-game currency "Z's" to buy weapons and skins…