Tower of Saviors is an app game that was made by a Hong Kong company called "Madhead", and it's a switching marble and RPG, it also have Chinese and English version.
"Tower of Saviors" uses the "myths, legends and fairy tales" around the world as reference for cards. From the level story, potential liberation story, sublimation story and character's background story, it can be seen that different summoning beasts are related to each other, which it's also a key to evolution of the game.
There are 6 different s types of marble" water, fire, wood, light, dark, and hearts."In addition to using a special card as the captain or a friend for special skill, you can be eliminated by connecting three or more in a straight or horizontal arrangement.
In every 2 weeks or months, it will have different event, it is a way of getting new cards or you can spend 5 "magic stones" to get new cards.
There are seven general types of cards, god, Warcraft, human, monster, dragon, fairy, and Mechanical; the special cards are divided into 2 types "enhanced material" and "evolutionary material"
In this game, you can make your own team to fight the event, or you can play with your friends, so I thinks it is a very good game that you can play every where.