What is the real GB size of the games available on the Microsoft Store?

Not unless you can tell me if any delisted games will ever be relisted. Some have, but none of the really good ones.

Is there anything else I can do for you?

Hi there Zero welcome to the community forum! Christopher here, an Xbox fan and been on Xbox for years already. I would really love to make your day by helping you out. I completely understand were you're coming from; the size on the Microsoft Store is accurate for the first "version" of the game.

Call Of Duty Modern Warfare is a clear example of what you are stating; the game weights around 20 G.B but after the updates it almost is 100 G.B! Why do Microsoft doesn't put the final size of the game on the store? The answer I got it from Xbox support and they told me that this is due to how unpredictable updates are, a developer/publisher can update his game 10 times a week, making this the game heavier or lighter! And Microsoft would have to change the size everytime, updating the store as well.

So yes, this is a reason, I completely understand your concern, I was on the same spot as you are, unfortunately right now the only way to know the real size of a gane is to download it ourselves! Or try to find the final size on a forum! (But like I said, there are a lot of updates for games so the forum size might be outdated.)

most games are delisted due to music or car licences expiring or some other content licence expiring, which means they cannot legally sell that game anymore hence the delisting.

Many games are becoming modular to deal with disc space issues. For example the new Mass Effect remaster can download each game seperate lt

In these games, it usually reports the size of the launcher, because the store is just reading the sizes from the database

You should look at game websites, forums, and social media feeds for answers to these kinds of questions and they will be much more direct and accurate.