Games like Riverside of Dice
Games like Riverside of Dice include Slay the Spire, Slay the Spire 2, 9 Kings, Griftlands, and Balatro. We matched them by the tags players give Riverside of Dice on Steam (Card Battler, Roguelite, PvE, Board Game, and Roguelike): closest matches first, and among equally close ones the better-known games.

Slay the Spire
Shared: Card Battler · Roguelike · Roguelite

Slay the Spire 2
Shared: Roguelike · Card Battler · Strategy

9 Kings
Shared: RPG · Strategy · Roguelike

Griftlands
Shared: Card Battler · Roguelite · RPG

Balatro
Shared: Roguelike · Roguelite · Strategy

Super Fantasy Kingdom
Shared: Roguelite · Roguelike · RPG

Monster Train
Shared: Card Battler · Roguelite · Roguelike

Inscryption
Shared: Card Battler · Roguelite · Roguelike

Die in the Dungeon
Shared: Roguelike · Card Battler · Strategy

Roguebook
Shared: RPG · Roguelite · Strategy

HELLCARD
Shared: Card Battler · Roguelite · Roguelike

Peglin
Shared: Roguelite · Roguelike · Deckbuilding

Dungeons & Degenerate Gamblers
Shared: Roguelike · Card Battler · Roguelite

Dicey Dungeons
Shared: Card Battler · Roguelite · Roguelike

Vampire Crawlers: The Turbo Wildcard from Vampire Survivors
Shared: Card Battler · Roguelike · Strategy

Journey to the West
Shared: Card Battler · Roguelite · RPG

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

天外武林 (Traveler of Wuxia)
Shared: Roguelike · Card Battler · RPG

Cross Blitz
Shared: Roguelite · Card Battler · RPG

Ratropolis
Shared: Card Battler · Roguelite · 2D

He is Coming
Shared: Roguelite · Roguelike · Strategy

Breachway
Shared: Roguelike · Card Battler · Strategy

Home Behind 2
Shared: RPG · Strategy · Roguelike

Mewgenics
Shared: Roguelite · RPG · Turn-Based Combat