Lords of the Fallen uses a 'risk and reward' system when it comes to upgrading Harkyn. The game utilizes a checkpoints system that the player must locate and can choose to use to save, replenish consumable items, such as healing potions, and upgrade their character. In dialogue, the player can also make choices with certain characters and their quests. Along the way, the player will also encounter non-player characters who offer further information, lore, and in many cases, grant additional tasks to the player for more rewards. However, each new area has multiple paths, hidden locations, and potential shortcuts and secrets to uncover. The game is divided into acts with hubs and nonlinear gameplay progression through a main central story, with new areas continuously opened as the player progresses while also being allowed to return to previously completed areas.

As the player progresses through the game and defeats enemies, experience can be gained and spent to upgrade Harkyn's skills and unlock new spells to use in combat. For example, a warrior set combined with brawling magic creates a pure warrior with high strength and vitality, while a warrior set can also be combined with solace magic to create a paladin class that is not as strong but can specialize in spell usage early in the game. Magic adds to the variability of each class. With sets, the warrior uses heavy yet strong armor and weapons, the rogue is much lighter and quicker, and the cleric utilizes staffs and armour that supports spell use. Different combinations of both choices allow the player to choose how to play Harkyn from the start. A class is determined based on two major choices of three kinds of magic brawling, deception, and solace, followed by the second choice of three different armor sets warrior, rogue, and cleric.

The player takes the role of Harkyn, who, from the beginning, can be tailored towards the player's preferred combat styles from a range of different classes, each with their own specializations in certain weapons, armors, spells, and abilities. Lords of the Fallen is a third-person action role-playing game containing a slow tactical approach to close-quarters combat gameplay, with difficult enemies and locations to overcome, while learning from their encounters.

Lords of the fallen spider