Games like Adventurer's Conquest
Games like Adventurer's Conquest include Magic: The Gathering Arena, Across the Obelisk, Animation Throwdown: The Quest for Cards, Monster Train, and Balatro. We matched them by the tags players give Adventurer's Conquest on Steam (Casual, Card Game, Turn-Based Strategy, Card Battler, and Trading Card Game): closest matches first, and among equally close ones the better-known games.

Magic: The Gathering Arena
Shared: Card Game · Trading Card Game · Turn-Based Strategy

Across the Obelisk
Shared: Casual · Turn-Based Strategy · Card Game

Animation Throwdown: The Quest for Cards
Shared: Card Game · Card Battler · Trading Card Game

Monster Train
Shared: Card Game · Card Battler · Turn-Based Strategy

Balatro
Shared: Card Game · Casual · Card Battler

Slay the Spire 2
Shared: Card Game · Card Battler · 2D

Slay the Spire
Shared: Card Game · Card Battler · Indie

Yu-Gi-Oh! Legacy of the Duelist
Shared: Card Game · Card Battler · Trading Card Game

Cross Blitz
Shared: Card Game · Card Battler · Turn-Based Strategy

GWENT: Rogue Mage (Single-Player Expansion)
Shared: Card Game · Turn-Based Strategy · Card Battler

DICEOMANCER
Shared: Card Game · Card Battler · Colorful

Inscryption
Shared: Card Game · Card Battler · Indie

Wildfrost
Shared: Card Game · Card Battler · Turn-Based Strategy

Ratropolis
Shared: Card Battler · 2D · Card Game

Shadowverse: Worlds Beyond
Shared: Card Battler · Trading Card Game · Card Game

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

SteamWorld Quest: Hand of Gilgamech
Shared: Card Game · Card Battler · 2D

Stacklands
Shared: Card Game · Card Battler · 2D

Card City Nights
Shared: Card Game · Card Battler · Casual

Decktamer
Shared: Card Game · Card Battler · Turn-Based Strategy

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

Looper Tactics
Shared: Card Game · Card Battler · Casual

Kabuto Park
Shared: Casual · Card Battler · Colorful

Journey to the West
Shared: Card Battler · Card Game · 2D