If you want, I can draft a ready-to-send support message to Steam/Microsoft/your reseller including relevant details — tell me which platform/store and any error text you received.
: Rovio officially retired the PC versions of their classic games (including Bad Piggies and Angry Birds) years ago. Modern Access activation key bad piggies pc
If you bought from GOG.com:
Are you having trouble finding a valid activation key for Bad Piggies on PC? You're not alone! Many players are struggling to get their hands on a working key for this popular puzzle game developed by Rovio Entertainment. If you want, I can draft a ready-to-send
If you are using an older physical CD-ROM version, the original universal code often used was: THET-ALEV-LEFR-USWO If you want