You are downloading the Traitor AppX file v1.1.0.3 for Windows Phone. Traitor is a free Strategy Game: The apocalypse has come, you don't know why, but you do know you need to survive. Choose to play as the wanderer or the traitor and do your best to survive.*. You can now download the offline AppX package file to install & try it.
Download Locations for Traitor 1.1.0.3 AppX file
Package File
Please Click Here > to retrieve available package files for Traitor.
Please be aware that the Traitor AppX file you are to download is hosted on the Microsoft Store CDN server. You can read more about Traitor or get it on Microsoft Store.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Traitor AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.