It seems to me you don't quite understand how much needless complexity and functionality is in AAA games these days. Watch how I remove the complexity:
1) We only support Linux.
2) We only support Vulkan (or OpenGL, but I prefer Vulkan)
3) Singleplayer only.
4) Engine features: RGBA Diffuse, specular, shadow, normal/bump, emission maps for materials only. A simple triangle rasterizer with forward rendering. Support for audio, dae animations/rigs/geometry. Physics collisions through an octree and capsule and basic linear algebra. Basic first person/third person cameras.
4) As much content as possible from copyleft/free sources. Mixamo, Cgtrader, poliigon, textures.com etc. A programmer's job is to use whats out there. But, given an extra 6 months, I could also model and texture everything myself as well. I'll do all level design.
5) Dialogue written by me, voice acting through AI or vocaloid.
6) I would estimate the final code to be around 50,000 lines for everything. I can give you a breakdown if you want. All code is in C99, minspec is a ryzen 5600g, which is like $150 max these days.
Something I've missed? I've described a classic first person adventure shooter like Halo for you there. Simply let me know if I should do something else.
The experience of being called a midwit by some idiot who is potentially having some kind of episode who thinks they can outdo every major game production company in the world if he “just had the chance” - which conveniently he’ll never have because otherwise he’d have to face the reality of his abilities… is quite something ;)
