At this point in gaming history, there has never been an easier entry point for game development. So many tools are low cost – or even free – and many even remove the requirement to know programming.
GameMaker Studio 2 was just released by YoYo Games this week and continues the lineage of a classic game engine (the original was used to create Hyper Light Drifter). There are a variety of ways to grab GameMaker Studio 2. A base version which allows you to publish to Windows or Mac with a splash screen watermark is available for $39.99/year.
Alternately, folks can opt to buy a permanent license to publish on a specific device (Windows, mobile, web, PS4 or Xbox One) with prices ranging from $99 on PC to $799 on console.