Games like Eternal Rifts
Games like Eternal Rifts include Sultan's Game, Magic: The Gathering Arena, Talisman: Digital Classic Edition, For The King II, and Faeria. We matched them by the tags players give Eternal Rifts on Steam (Adventure, Strategy, Trading Card Game, Turn-Based Strategy, and Card Game): closest matches first, and among equally close ones the better-known games.

Sultan's Game
Shared: Strategy · Adventure · Card Game

Magic: The Gathering Arena
Shared: Strategy · Trading Card Game · Card Game

Talisman: Digital Classic Edition
Shared: Strategy · Tabletop · Card Game

For The King II
Shared: Adventure · Strategy · Turn-Based Strategy

Faeria
Shared: Strategy · Card Game · Adventure

Aniimo
Shared: Adventure · Creature Collector · Exploration

Terraria
Shared: Adventure · Multiplayer · Exploration

Gremlins, Inc.
Shared: Strategy · Card Game · Tabletop

Monster Sanctuary
Shared: Creature Collector · Adventure · Exploration

GWENT: The Witcher Card Game
Shared: Strategy · Card Game · Trading Card Game

Sid Meier’s Civilization® VI
Shared: Strategy · Turn-Based Strategy · Multiplayer

Rento Fortune: Online Dice Board Game (大富翁)
Shared: Strategy · Trading Card Game · Tabletop

Armello
Shared: Turn-Based Strategy · Strategy · Card Game

The Last Spell
Shared: Strategy · Turn-Based Strategy · Singleplayer

The Dungeon Of Naheulbeuk: The Amulet Of Chaos
Shared: Adventure · Strategy · Turn-Based Strategy

Wartales
Shared: Turn-Based Strategy · Adventure · Strategy

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

Tabletop Simulator
Shared: Tabletop · Card Game · Trading Card Game

Through the Ages
Shared: Strategy · Card Game · Tabletop

Heroes® of Might & Magic® III - HD Edition
Shared: Strategy · Turn-Based Strategy · Multiplayer

The Elder Scrolls Online - Standard Edition
Shared: Adventure · Exploration · Multiplayer

Mount & Blade II: Bannerlord
Shared: Strategy · Multiplayer · Adventure

Balatro
Shared: Card Game · Strategy · Singleplayer

The World of Kungfu: Dragon and Eagle
Shared: Adventure · Strategy · Singleplayer