Games like Roulette Dungeon
Games like Roulette Dungeon include Slay the Spire, Slay the Spire 2, Balatro, Vampire Crawlers: The Turbo Wildcard from Vampire Survivors, and Die in the Dungeon. We matched them by the tags players give Roulette Dungeon on Steam (Roguelike Deckbuilder, Dungeon Crawler, Adventure, Roguelike, and Gambling): closest matches first, and among equally close ones the better-known games.

Slay the Spire
Shared: Roguelike Deckbuilder · Roguelike · Deckbuilding

Slay the Spire 2
Shared: Roguelike · Roguelike Deckbuilder · Deckbuilding

Balatro
Shared: Roguelike Deckbuilder · Roguelike · Deckbuilding

Vampire Crawlers: The Turbo Wildcard from Vampire Survivors
Shared: Dungeon Crawler · Roguelike · Deckbuilding

Die in the Dungeon
Shared: Roguelike · Roguelike Deckbuilder · Deckbuilding

9 Kings
Shared: Roguelike · Roguelike Deckbuilder · Deckbuilding

Across the Obelisk
Shared: Adventure · Roguelike Deckbuilder · Roguelike

Rune Dice
Shared: Roguelike Deckbuilder · Dungeon Crawler · Roguelike

Dice & Fold
Shared: Dungeon Crawler · Roguelike Deckbuilder · Roguelike

Dungeon Clawler
Shared: Roguelike Deckbuilder · Gambling · Roguelite

Crown Trick
Shared: Roguelike · Dungeon Crawler · Turn-Based Combat

Dicey Dungeons
Shared: Roguelike Deckbuilder · Roguelike · Deckbuilding

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

HELLCARD
Shared: Roguelike · Dungeon Crawler · Roguelite

Chrono Ark
Shared: Roguelike Deckbuilder · Adventure · Roguelite

Monster Train
Shared: Roguelike · Roguelite · Deckbuilding

Dungeons & Degenerate Gamblers
Shared: Roguelike Deckbuilder · Roguelike · Deckbuilding

LONESTAR
Shared: Roguelike · Roguelike Deckbuilder · Turn-Based Combat

Super Fantasy Kingdom
Shared: Roguelike · Roguelike Deckbuilder · Roguelite

He is Coming
Shared: Roguelike · Dungeon Crawler · Roguelike Deckbuilder

Overdungeon
Shared: Roguelike Deckbuilder · Deckbuilding · Adventure

StarVaders
Shared: Roguelike Deckbuilder · Deckbuilding · Roguelike

RACCOIN: Coin Pusher Roguelike
Shared: Roguelike Deckbuilder · Roguelike · Deckbuilding

Deep Sky Derelicts
Shared: Roguelike Deckbuilder · Dungeon Crawler · Deckbuilding