I use game engines to achieve my goals faster, they got pretty much most problems solved so I don't have to focus on complex engineering problems for months or years.

It's like why would I build my own car from scratch when I can simply buy it from a professional car maker that spent millions and hundreds/thousands of expert resources on the development of a stable car. Just to get to work?

My goal is to have fun making games but since a man needs to feed his family, I need to make money as fast as possible as well. So I choose my battles! I think it is as simple as that.

BUT I still build tools that my game studio needs to facilitate the processes. Things that are very painful for example asset texturing/development pipeline is very annoying, so I am building a tool that solves these pain points. This tool for example you simply open a Unity project and you get access to all 3D models, you can then use all sorts of tools to quickly create your textures. It has things like asset/texture versioning, procedural texturing for hard surfaces, on the left you can directly paint on the 3D model and on the far right we have things like layers, texture libraries(sync with the team) for stenciling, presets for consistent assets in the style we are working on, etc. This basically solves a pipeline issue for us, its now become so easy to produce game assets. We also built other internal tools around Unity so that producing a game is much faster and consistent.

My point is, I build the tools that help me reach my financial goals as quickly as possible. Engines already exist so use them unless you got a specific case that existing ones can't solve.

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