# What it makes a 3D model game-ready? [duplicate]

I've been up to Blender since mid 2016, started to work professionaly selling my 3D models since Jan, 2018... and now I'm used to hear the same questions from the customers: "Are your models game-ready?"

And I always reply: "By the moment all my models published are not 100% optimized for games"

I say this because I do use PBR materials, modelled mid-poly with tris, and now I'm learning to get my new models rigged and ready to animate. But I think something is missing.

The principal question is... what it takes to make a model game-ready?

do I have to use Blender Game Engine to achieve this? In college, they taught me how to use Cycles only, and I don't know if a model with mid-poly tris, PBR materials and properly rigged for animations makes it "game-ready" altough it was made entirely in Cycles engine.

a "game-ready" model bought from a digital store, makes it ok for commercial licencing? this is a polemic question, but some customers ask this in some situations. For example: imagine that I make a 3D game-ready model of a Fender Stratocaster guitar, and sell it on internet via a third-parties 3D gallery. That model can make it into an actual published lucrative videogame using the brands and models I've made?