Brave Frontier

Brave Frontier's gameplay is similar to Tri-Ace's Valkyrie Profile. The storyline focuses on the unnamed summoner and players have to complete every stage to access a new area. Players are allowed to bring up to 5 units in each stage with a "friend" unit in quest mode. Players make friends through friend request.

Attacking units in a battle rewards the player with Brave Burst Crystals, and Heart Crystals. After an enemy is defeated, the player proceeds the next stage until the boss, which is required to go complete a level. After completing, players are rewarded with Zel, Karma and items, as well as acquiring units from each mission. When players complete the entire area, they'll be rewarded with one gem.

The land of Grand Gaia is a world ravaged by a war between humans and the Gods that took place many years ago. It is a land surrounded by a veil of mystery but engulfed in havoc as certain places have been conquered by four fallen gods, who have betrayed their fellow gods. Amidst the chaos, The Imperial Army of Randall, capital of Elgaia and the Akras Summoners Hall are doing their best to handle the chaos the fallen gods and the demonic legions its causing, but have not been able to push them back. But, amidst the chaos, a god by the name of Lucius summons a hero to liberate Grand Gaia from The Four Fallen Gods.

The game was first announced after the Gaming Company A-Lim was officially registered in March 2013. The company, formed from the combined efforts of Gumi Ventures, B-Dash Ventures, and Fuji Startup Ventures, a company owned by Fuji TV. Hironao Kunimitsu officially stated that the company would have "key advantage over other game-makers in the market." Hisatoshi Hayakashi, the game's executive producer stated that the game was inspired from various RPG games such as Final Fantasy, Valkyrie Profile, Romancing SaGa, Star Ocean and the Tales series; Hayashi explained, "Originally, we wanted to have players walk around towns and dungeons, but then we thought about mobile devices and small screens and suddenly, knowing how far you were into a dungeon was quite scary, and walking in towns was not as enjoyable as it should be. But I am convinced that if we can somehow represent the fact that players are walking around cities and dungeons, talking to people and fighting monsters, all on a mobile device, they will really get into the RPG world."

Following the game's release, several promotional in-game units were released exclusively in both Japanese and global versions of the game, including crossover units from magazines such as Famitsu and other smartphone games such as Emperors SaGa, Deemo, Puzzle Trooper, Rise of Mana, Secret of Mana, Tales of Link, Rune Story, The King of Fighters, Phantom of the Kill, Shin Megami Tensei IV: Apocalypse, Final Fantasy Brave Exvius, Blazing Odyssey and Crystal of Reunion. The developers also collaborated with other media franchises such as Crypton Future Media's Vocaloid mascot Hatsune Miku the film series The Hobbit and Eagle Talon.

Gamezebo gave the game a generally positive review, stating that "It's got its heart in the right place aspiring to be like the Final Fantasy or Xenoblade series, but it's still caught up in the platform paradigms we know all too well. In other words, it's fine for its time, just not timeless." The global version of the game became the most downloaded game on both Android and iOS platforms with a total of 10 million downloads as of August 2014.

It currently holds the Guinness World Record for the "Most playable pixel art characters in a mobile game".