Games like Deeper Than Hell
Games like Deeper Than Hell include Children of Morta, Risk of Rain (2013), Streets of Rogue, Risk of Rain Returns, and ELDEN RING NIGHTREIGN. We matched them by the tags players give Deeper Than Hell on Steam (RPG, Action Roguelike, Multiplayer, Online Co-Op, and Roguelike): closest matches first, and among equally close ones the better-known games.

Children of Morta
Shared: Multiplayer · Roguelike · Action Roguelike

Risk of Rain (2013)
Shared: Action Roguelike · Roguelike · Action

Streets of Rogue
Shared: Action Roguelike · RPG · Multiplayer

Risk of Rain Returns
Shared: Action Roguelike · Multiplayer · Online Co-Op

ELDEN RING NIGHTREIGN
Shared: Multiplayer · Online Co-Op · Roguelike

Risk of Rain 2
Shared: Action Roguelike · Multiplayer · Roguelike

Hero Siege
Shared: Action Roguelike · RPG · Multiplayer

Magicite
Shared: RPG · Multiplayer · Roguelike

Sephiria
Shared: Action Roguelike · Roguelike · RPG

Rogue Legacy
Shared: Action Roguelike · Roguelike · Platformer

Gunfire Reborn
Shared: Roguelike · Online Co-Op · Multiplayer

Ravenswatch
Shared: Action Roguelike · Roguelike · Online Co-Op

Heroes of Hammerwatch
Shared: Action Roguelike · Multiplayer · RPG

Roguelands
Shared: Action Roguelike · RPG · Multiplayer

Barony
Shared: Multiplayer · Action Roguelike · Roguelike

Skul: The Hero Slayer
Shared: Action Roguelike · Action · Roguelike

MONSTER HUNTER RISE
Shared: RPG · Online Co-Op · Action

Dungreed
Shared: Action Roguelike · Roguelike · Action

Ember Knights
Shared: Action Roguelike · Multiplayer · Online Co-Op

Vampire Survivors
Shared: Action Roguelike · 2D · Roguelike

Dead Cells
Shared: Action Roguelike · Roguelike · 2D

Heroes of Hammerwatch II
Shared: RPG · Action Roguelike · Roguelike

Wizard of Legend
Shared: Action Roguelike · Roguelike · Multiplayer

Vagante
Shared: Action Roguelike · Action · Roguelike

