Because the game is no longer officially available, the IPA file has become a "community-kept" asset. An IPA file is essentially a compressed package containing the app's binary and resources. Sideloading
: Since official servers are down, some features like events or the arena may not work unless you are using a community-patched "mod" version [1]. angry birds epic ipa file
Searching for the Angry Birds Epic IPA file is a trip down memory lane, but it’s a dangerous one. Sideloading apps from untrusted websites can compromise your security and violate Apple’s terms of service. Because the game is no longer officially available,
Preservation of Mobile Gaming Heritage: A Technical Analysis of the Angry Birds Epic .IPA Archive angry birds epic ipa file