Titan Souls is a 2015 action-adventure game developed by Acid Nerve and published by Devolver Digital.

Between Earth and the real world beyond lie the Titan Souls, the spiritual source and sum of all living things.

Titan Souls is a strategic, open world, 2D, top-down action-adventure, where the player has only one arrow and can only take one hit.

The difficulty is that the single arrow has to be charged to be shot and afterwards has to be retrieved to be reused, each action only able to be done while the player is standing still, making them an easy target for the bosses.

In June 2014, Titan Souls was shown at E3 2014, revealing that the game will be published by Devolver Digital.

On 25 March 2015, Devolver Digital revealed that Titan Souls will be released on 14 April 2015.

He summarized the review by calling a top down game with "Zelda-style battles against a large gallery of tough bosses in the vein of Shadow of the Colossus.