Hey quick question how did you find the textures for this game like the metal textures and such?
Viewing post in EASY Dithering and Color Palette (For Unity) comments
A lot of it is just photographs of things I have taken, some things are from texture collections I've had for a decade so I can't really say about their origin.
I do suggest taking a look at old texture CD's, internet archive might have some free ones. But those might have some copyright problems. OpenGameArt is another good source for textures.
If there's demand, I might make an asset pack containing common textures like metals and etc.