Does it make sense to create your own game engine?

Question

Game development

In addition to this question, answer a few more:
1. What level of programmers are involved in the creation of game engines?
2. If a group of enthusiastic programmers has one, what can be offered to existing Russian game development companies to show coding skills, and then put into use for project development?
3. Does it make sense to rewrite the components of existing engines (for example, the render component in Unity) for your own needs?
And the last question:
4. 3D graphics and shader programmer ( OpenGL, DirectX ) = engine programmer? :)

Answer 1

Of course, it makes sense to create your own game engine.
You, of course, will not be able to make a working engine, and even more so, you will not be able to apply it anywhere.
But on the other hand, you will learn a lot and, God willing, stop asking thoughtfully questions sucked out of your finger.

Answer 2

Does it make sense to create your own game engine?

Depends on the purpose of creation.
If for competition with existing engines, then it doesn’t - the weight categories are not the same.
It makes sense if the goal is:
- Gaining experience;
- Portfolio development;
- development of a specific technology for a particular case, which is not covered by popular universal engines;
- getting pleasure.
Anyone, depending on the purpose.
You can offer anything, but no one will agree. You can try to find funding for the development of a finished game with UNIQUE gameplay on this engine.
Quite, if the license of the engine allows it. In any complex product, there are a huge number of bottlenecks that can be improved.
Depending on which programmer and depending on which engine :-D
In general, the concept of "engine" is very vague, so yes and no.

Answer 3

If you already have 3+ years of experience in hardcore development on the pluses, then you should definitely make your own engine or any other bike so that your brain does not atrophy

1. What level of programmers are involved in the creation of game engines?

any, sufficient to read the manual and write code

2. If a group of enthusiastic programmers has one, what can be offered to existing Russian game development companies to show coding skills, and then put into use for project development?

full of engines
Engines are a small part of what is required to take off
You will have to compare with unity and unreal engine
They have ten + years in the gas station, a lot of money and a lot of fans

3. Does it make sense to rewrite the components of existing engines (for example, the render component in Unity) for your own needs?

If you have n1 +, then yes
Will you do better - the probability is extremely small

4. 3D graphics and shader programmer (OpenGL, DirectX) = engine programmer? :)

no
And what is a "shader programmer" anyway?