I googled and i cant find answer for this (maybe not right keywords).
Iam mainly aiming for google play store so android and was wondering how to setup project for later updates, like main game have 50mb and i want add update or dlc update so how do i setup this game for later updates to just add art and things of update instead of whole new build. Is that even possible for play store? Do i have to use assets package or what?
Asset bundles are the most common system to use, and the most pratical out of the box.
You can always bypass this with your own serialisation scheme. Be prepared to do some intense engineering on this. It’s probably not pratical to tackle this on your own, I’d suggest having a team of experienced programmers to help out.