A revamped version for iOS and Android devices, called Dungeon of the Endless: Apogee, was released in March 2021 by Playdigious.

[2] In the game, the player takes the role of the survivors of a prison spaceship, its escape pod having crashed to the surface of a strange planet.

To help, the player can have their survivors explore the randomly generated levels to collect resources as to enable power to various rooms and construct turrets to fend off the enemies when they move the crystal from its starting point to the elevator to the next floor.

Other rooms may feature item chests, shopkeepers, and research stations, or they may contain survivors that players can recruit to their party (up to 4 characters total).

Once any spawned monsters are defeated, the player can move characters about and build defenses freely until they opt to open the next door.

The goal of the game is to complete 12 of these levels, each with more difficult monsters that appear, with at least one character carrying the crystal to the final exit point.

Though strictly single-player on PS4 and Switch, the PC and Xbox versions of the game also support online play with up to four players.

Amplitude's co-founder Romain de Waubert de Genlis stated that while they were developing a deep, high-quality 4X-based game in Endless Legend, the concept of Dungeon came from "some crazy drinking evening", and instead of trying to approach the smaller title with crowdfunding, they sought additional funding to support the title.

[14] Dungeon of the Endless has received generally positive reviews, comparing the title to other hybrid roguelike such as FTL: Faster Than Light.

[21][22] Dungeon of the Endless was named as an honorable mention in the Excellence in Design category for the 2015 Independent Games Festival awards.