Atlas Fallen is a third-person action role-playing video game. At the beginning of the game, players can create and customize their own player avatar. The player character is equipped with an ancient gauntlet that allows them to manipulate sand, to turn it into weapons. Players can use three different weapons, though they can only carry two at any given time. Atlas Fallen is an action-oriented game; players are required to dodge, counter and block incoming attacks, as well as quickly switching between land and air combat. As players attack enemies, they will gain momentum. At certain momentum threshold, the weapon the player is wielding will transform, and they can unleash a special skill or ability that deals devastating damage to their opponents.

The game features an open world, with regions for players to explore, and players can meet different non-playable characters and complete various side quests and activities. Movement is an essential part of the game’s exploration and transversal. With the gauntlet, players can glide through the game’s desert landscape. The gauntlet allows players to perform feats such as air dashing. Players can raise buried objects, allowing them to discover hidden areas and open up new paths. As players progresses in the game, they will find “Shards” and “Catalyst Pieces”, which further upgrade the gauntlet’s combat capabilities. The game includes a two-player cooperative multiplayer mode.