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A world with two kingdoms: the Emblian Empire, which wishes to rule all worlds, and the Askran Kingdom, which stands in its way.
You are a summoner with the special ability to call upon legendary Heroes from different Fire Emblem worlds. In order to save the Kingdom of Askr from destruction, join the Order of Heroes and face a never-ending challenge.
Source: https://fire-emblem-heroes.com/en/
Also lists some of the available characters.
Take part in strategic turn-based battles streamlined for on-the-go play with maps that fit in the palm of your hand! Lead your army with easy touch and drag controls, including the ability to attack by simply swiping an ally over an enemy.
Types
Each Hero has a color type. This color type determines weapon advantages and disadvantages that affect your attack power. If you want battles to go in your favor, build your team with Heroes that have an advantage over the enemy!
Specials
Specials are critical moves you choose for your Heroes. They will undoubtedly prove powerful on the battlefield.
Use Orbs to summon Heroes that will fight for you. Five colored summoning stones are randomly generated, allowing you to summon a Hero based on their color type. You can obtain Orbs by clearing story maps or purchasing them through the Shop.
You can customize your allies and create teams to use in battle. From this menu, you can also learn new skills, change equipment, and take the abilities of your Heroes to new heights.
Skills
Use SP (Skill Points) gained by defeating enemies or leveling to obtain new skills. There are three types of active skills: Weapon, Assist, and Special. There are also passive skills, which give you a boost just by equipping them.
The story brings together new Hero characters along with familiar faces from the Fire Emblem series. Lead your army to victory to save the Kingdom of Askr.
Fight against your rivals around the world. Your high score and ranking will determine your rewards—items that can increase your Heroes' abilities.
More info on gameplay: https://fire-emblem-heroes.com/en/system/
Google Play Store: https://play.google.com/store/apps/details?id=com.nintendo.zaba
iOS App Store: Your text to link here...
Looking like a somewhat altered fire emblem game for smart devices with a gacha element to collect various Fire Emblem characters to use in battle. Launches February 2nd and is available for pre registration for Android.
There's also a vote going on to pick your favorite FE characters with some freebies for Nintendo account owners.