Games like Dungeon Forge
Games like Dungeon Forge include Stoneshard, Moonlighter, Darkest Dungeon®, UnderMine, and Hades. We matched them by the tags players give Dungeon Forge on Steam (Action Roguelike, RPG, Exploration, Strategy, and Dungeon Crawler): closest matches first, and among equally close ones the better-known games.

Stoneshard
Shared: RPG · Strategy · Roguelike

Moonlighter
Shared: Action Roguelike · Dungeon Crawler · Roguelite

Darkest Dungeon®
Shared: RPG · Dungeon Crawler · Roguelike

UnderMine
Shared: Action Roguelike · RPG · Roguelite

Hades
Shared: Action Roguelike · Roguelite · RPG

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

Crown Trick
Shared: RPG · Dungeon Crawler · Roguelite

Nordic Ashes: Survivors of Ragnarok
Shared: Action Roguelike · Exploration · RPG

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

Streets of Rogue
Shared: Action Roguelike · RPG · Roguelite

For The King
Shared: RPG · Strategy · Turn-Based

Home Behind 2
Shared: RPG · Strategy · Adventure

Dungeon of the ENDLESS™
Shared: Strategy · RPG · Roguelike

Hades II
Shared: Action Roguelike · Roguelite · RPG

Vampire Survivors
Shared: Action Roguelike · Roguelite · Roguelike

Heroes of Hammerwatch
Shared: Action Roguelike · Roguelite · RPG

Slay the Spire
Shared: Strategy · Turn-Based · Roguelike

Dungreed
Shared: Action Roguelike · Roguelite · Roguelike

Dead Cells
Shared: Action Roguelike · Adventure · Roguelike

Lootbound
Shared: Strategy · RPG · Dungeon Crawler

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

Delver
Shared: RPG · Action Roguelike · Dungeon Crawler

Gunfire Reborn
Shared: Roguelite · Roguelike · Action Roguelike

Renowned Explorers: International Society
Shared: Strategy · RPG · Turn-Based