[4] Tower of Saviors takes place in a fantasy world where players assume the role of "Summoners" and collect various monster cards with various mythological backgrounds and rarities.

In ancient times, humanity built the Enochian Tower, which was used to reach the heavens and learn the ways of the gods.

Thousands of years later, humanity's only hope to end the war with the remaining demons is for the Summoners to unleash the Tower's Seals and seek help from the gods.

Every player has an energy limit that increases in capacity as they level up and is displayed at the bottom of the home screen.

Experience is gained at the end of each battle, which is shown in the top-left of the home screen along with the player's level.

Users progress through the game's storyline by completing stages in the five locations found on the home screen in, clockwise from top-left: Glacial Iceberg, Afire Volcano, Dark Cove, Divine Woodland, and Holylight City, each representing a specific attribute, before reaching Enochian Tower (Centre) and unlocking various "seals".

Coins are collected from battles and through discomposing cards, while diamonds are obtained from completing sets of stages.

Mad Head has been accused of plagiarism due to alleged gameplay similarities between it and Puzzle & Dragons.