It is worth noting that Rovio has been reluctant to promote this collection heavily because they profit more from Angry Birds 2 (which uses a "lives" system). The exists largely due to fan pressure and Microsoft's push for game preservation.
As of 2026, the availability of verified Angry Birds content on Microsoft platforms is limited: Angry Birds Space angry birds collection ms verified
On Xbox, users can create (custom collections). A player who owns multiple backward-compatible Angry Birds games might name their group “Angry Birds Collection MS Verified” — but this is not a retail product. It is worth noting that Rovio has been
: Unlike modern mobile versions, these legacy PC versions do not support Rovio Accounts (which were discontinued in 2022). Your progress is saved locally only . Install a widescreen patch for a 1080p monitor? A player who owns multiple backward-compatible Angry Birds