Build games people actually play

Start with Unity or Godot, and leave Unreal until later. Certificate in 2D Game Development Using Unity teaches C# from zero, which makes it the gentlest entry point. The Godot courses move quickly through GDScript and expect you to have met a loop before. Certificate in Unreal Engine 5 is the heaviest to run and teaches Blueprint, a node graph rather than a written language.

Not before you start, but you will be writing code by the end. The Unity course spends about half its opening module teaching C# from zero, each idea explained and then used immediately. Unreal Engine 5 teaches Blueprint instead, which is visual. Godot is the exception: GDScript moves fast there, so if loops and functions are new to you, take Certificate in Python Programming first.

Godot and Unity yes, Unreal probably not comfortably. The Godot download is around a hundred megabytes, and its 3D course builds nearly everything from primitives. Unreal Engine 5 is the demanding one, and Epic publishes recommended system requirements worth reading before you install. You do need a desktop or laptop with a three-button mouse, because a phone or tablet cannot drive a 3D viewport.

2D first. There is less to hold in your head, small projects actually get finished, and what you learn about scenes, input, collision and state carries straight into 3D. Both 2D courses end in a playable game. One thing to know before enrolling: none of these courses teaches art. The sprites are placeholders, so if drawing is the real goal, start in Graphic Design and Illustration.