You are downloading the Swamp Attack AppX file v126.96.36.199 for Windows Phone. Swamp Attack is a free Action & Adventure Game: Defend your house! Your swamp cottage is under attack by animals gone crazy. You have to defend it and survive the oncoming attacks from the evil zombie. You can now download the offline AppX package file to install & try it.
Download Locations for Swamp Attack 188.8.131.52 AppX file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Swamp Attack AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.