Games like Treasure Atlas
Games like Treasure Atlas include Black Book, Gordian Quest, Monster Train, For The King II, and Slay the Spire. We matched them by the tags players give Treasure Atlas on Steam (Adventure, Turn-Based Tactics, Combat, RPG, and Card Battler): closest matches first, and among equally close ones the better-known games.

Black Book
Shared: Turn-Based Tactics · Card Battler · Card Game

Gordian Quest
Shared: RPG · Adventure · Card Battler

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

For The King II
Shared: Adventure · RPG · Strategy

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

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

Marvels Midnight Suns Digital Edition
Shared: Turn-Based Tactics · Turn-Based Strategy · Card Game

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

Trials of Fire
Shared: Turn-Based Tactics · Card Battler · Card Game

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

Prime of Flames
Shared: RPG · Turn-Based Tactics · Strategy

Dream of Corpse Lady
Shared: Turn-Based Tactics · Card Game · Card Battler

9 Kings
Shared: RPG · Strategy · Card Game

Roguebook
Shared: RPG · Card Game · Strategy

Armello
Shared: Card Game · Board Game · RPG

Touhou: Lost Branch of Legend
Shared: Card Battler · Strategy · Turn-Based Tactics

Chrono Ark
Shared: RPG · Adventure · Strategy

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

Mewgenics
Shared: Turn-Based Tactics · RPG · Turn-Based Strategy

LONESTAR
Shared: Turn-Based Tactics · Card Battler · Strategy

The Last Spell
Shared: RPG · Turn-Based Tactics · Strategy

The Last Flame
Shared: Adventure · Strategy · RPG

Demeo
Shared: RPG · Turn-Based Tactics · Strategy

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