Digital download game from 360 not available on Series X

If you own a digital copy of Resident Evil 4 on Xbox 360, it should be available to download and play on your Xbox Series X because it is listed as a backward compatible game.

It's not backwards compatible. The Xbox One port of the game works on the Series X, but the 360 version is not playable on the Xbox One or Series X|S.

That's because it is NOT A bc title

You can find a searchable list of backwards compatible titles here

https://www.xbox.com/en-US/games/backward-compatibility

Digital games do transfer over as long as they are backwards compatible. The Lego Marvel games are not backwards compatible.

Hi,

The Xbox One can't read and run the data directly from BC 360 game discs. The games don't run from the discs like they would on a 360 console.

When Microsoft made these games BC, it took the original games, and without getting into all the technical details, reverse engineered and repackaged them as a digital downloads so that the Xbox One can play them. This is why as Smwutches as already stated,
there is an 'Update' when you insert a BC disc 360 game into your console. This isn't an update, it's actually the digital version of the game.

This is why your 360 game 'updates' are around the 8-16 GB sizes. Still comparatively small compared to the average Xbox One digital game download.

The BC system for 360 games on the Series X will have to work the same as there is no other way to do it.

However, the Series X is architecturally similar to the Xbox One, so Xbox One games will install and play on Series X just as they do an on an Xbox One console.