Games like One Room Dungeon
Games like One Room Dungeon include 9 Kings, Super Fantasy Kingdom, Balatro, Backpack Hero, and Slay the Spire. We matched them by the tags players give One Room Dungeon on Steam (Inventory Management, Auto Battler, Deckbuilding, Roguelike, and Replay Value): closest matches first, and among equally close ones the better-known games.

9 Kings
Shared: Auto Battler · Roguelike · Deckbuilding

Super Fantasy Kingdom
Shared: Auto Battler · Roguelike · Deckbuilding

Balatro
Shared: Roguelike · Deckbuilding · Replay Value

Backpack Hero
Shared: Inventory Management · Replay Value · Deckbuilding

Slay the Spire
Shared: Roguelike · Deckbuilding · Replay Value

Slay the Spire 2
Shared: Roguelike · Deckbuilding · Strategy

He is Coming
Shared: Auto Battler · Roguelike · Deckbuilding

Peglin
Shared: Deckbuilding · Roguelike · Replay Value

Luck be a Landlord
Shared: Deckbuilding · Roguelike · Auto Battler

For The King II
Shared: Roguelike · Party-Based RPG · RPG

Backpack Battles
Shared: Inventory Management · Auto Battler · Roguelike

Megaloot
Shared: Inventory Management · Roguelike · Replay Value

Dwarves: Glory, Death and Loot
Shared: Auto Battler · Roguelike · RPG

Tavern of Gods
Shared: Auto Battler · Replay Value · Roguelike

Legend Creatures(传奇生物)
Shared: Auto Battler · Roguelike · Replay Value

Backpack Dungeon
Shared: Inventory Management · Auto Battler · Deckbuilding

Breachway
Shared: Roguelike · Deckbuilding · Strategy

Dungeons & Degenerate Gamblers
Shared: Roguelike · Deckbuilding · Strategy

Die in the Dungeon
Shared: Roguelike · Deckbuilding · Strategy

Overlooting
Shared: Inventory Management · Roguelike · Replay Value

Darkest Dungeon®
Shared: Roguelike · Turn-Based Combat · RPG

Knightica
Shared: Auto Battler · Deckbuilding · Inventory Management

Ratropolis
Shared: Deckbuilding · Replay Value · Strategy

Turnbound
Shared: Auto Battler · Inventory Management · Deckbuilding