Games like Underground Dungeon
Games like Underground Dungeon include Vampire Survivors, Chained Echoes, Undertale, UnderMine, and DELTARUNE. We matched them by the tags players give Underground Dungeon on Steam (RPG, Roguelite, Pixel Graphics, Turn-Based Combat, and 2D): closest matches first, and among equally close ones the better-known games.
Vampire Survivors
Shared: Roguelite · Pixel Graphics · 2D
Chained Echoes
Shared: RPG · Pixel Graphics · Turn-Based Combat
Undertale
Shared: Pixel Graphics · RPG · Singleplayer
UnderMine
Shared: Roguelite · Pixel Graphics · RPG
DELTARUNE
Shared: Pixel Graphics · RPG · Singleplayer
The World of Kungfu: Dragon and Eagle
Shared: RPG · Turn-Based Combat · Indie
FINAL FANTASY
Shared: RPG · Pixel Graphics · Turn-Based Combat
Look Outside
Shared: RPG · Pixel Graphics · Turn-Based Combat
Skul: The Hero Slayer
Shared: Pixel Graphics · Roguelite · Indie
Stoneshard
Shared: RPG · Pixel Graphics · 2D
Darkest Dungeon®
Shared: Turn-Based Combat · RPG · Singleplayer
Death Must Die
Shared: Roguelite · RPG · Pixel Graphics
Stardew Valley
Shared: Pixel Graphics · RPG · Indie
To the Moon
Shared: Pixel Graphics · Indie · RPG
The Last Spell
Shared: RPG · Turn-Based Combat · Singleplayer
Dungreed
Shared: Pixel Graphics · Roguelite · 2D
CrossCode
Shared: RPG · Pixel Graphics · Singleplayer
Mewgenics
Shared: Roguelite · RPG · Turn-Based Combat
Graveyard Keeper
Shared: RPG · Pixel Graphics · Singleplayer
Rogue Legacy
Shared: RPG · Indie · 2D
Halls of Torment
Shared: Roguelite · Pixel Graphics · RPG
Boneraiser Minions
Shared: Pixel Graphics · Roguelite · 2D
Felvidek
Shared: RPG · Pixel Graphics · 2D
UFO 50
Shared: Pixel Graphics · Retro · RPG