Games like The Pentastic Descent
Games like The Pentastic Descent include Hades, Hades II, UnderMine, Death Must Die, and Vampire Survivors. We matched them by the tags players give The Pentastic Descent on Steam (RPG, Action Roguelike, Dungeon Crawler, Roguelite, and Action): closest matches first, and among equally close ones the better-known games.

Hades
Shared: Action Roguelike · Roguelite · Action

Hades II
Shared: Action · Roguelite · Action Roguelike

UnderMine
Shared: Action Roguelike · Roguelite · RPG

Death Must Die
Shared: Action Roguelike · RPG · Roguelite

Vampire Survivors
Shared: Action Roguelike · Roguelite · Pixel Graphics

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

Heroes of Hammerwatch
Shared: Action Roguelike · Roguelite · RPG

Dungreed
Shared: Action Roguelike · Roguelite · Action

Moonlighter
Shared: Dungeon Crawler · Roguelite · Action Roguelike

Streets of Rogue
Shared: Action Roguelike · Roguelite · RPG

Mortal Sin
Shared: Action Roguelike · Dungeon Crawler · RPG

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Dungeon Crawler · Indie

Cinderia
Shared: Action Roguelike · Roguelite · Dungeon Crawler

Halls of Torment
Shared: Action Roguelike · Roguelite · RPG

Delver
Shared: RPG · Dungeon Crawler · Action Roguelike

Slasher's Keep
Shared: Action Roguelike · Dungeon Crawler · RPG

Children of Morta
Shared: Action Roguelike · RPG · Roguelite

Diablo® IV
Shared: RPG · Dungeon Crawler · Isometric

Dungeon Souls
Shared: RPG · Action Roguelike · Dungeon Crawler

Wizard of Legend
Shared: Action Roguelike · Dungeon Crawler · Action

Shape of Dreams
Shared: Action Roguelike · Roguelite · PvE

Sephiria
Shared: Action Roguelike · Roguelite · RPG

Megabonk
Shared: Action Roguelike · Roguelite · Action

Dreamscaper
Shared: Action Roguelike · Roguelite · RPG