Hello. I'm looking for a mobile game that I played a few years ago. I used to play it a lot but I can't remember the name of it. However I can remember that it had three maps: a desert map, and island map, and a medieval map. The desert map was boxed in with large cliffs and it had a train track that ran through the middle of it. The island map had a large volcano and a weird area that was enclosed with a natural wall. The medieval map had a castle and was also boxed in with cliffs. I also remember an area with creeks covered in ice, but I'm unsure if this was another map. Any info eould be greatly appreciated.