Games like Ember Frontier
Games like Ember Frontier include Mewgenics, Monster Train, Slay the Spire, Balatro, and Stacklands. We matched them by the tags players give Ember Frontier on Steam (Card Battler, Turn-Based Tactics, Strategy, 2D Platformer, and Roguelite): closest matches first, and among equally close ones the better-known games.

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

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

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

Balatro
Shared: Card Game · Strategy · Roguelite

Stacklands
Shared: Card Battler · Card Game · Roguelite

Inscryption
Shared: Card Battler · Card Game · Strategy

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

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

Ratropolis
Shared: Card Battler · Strategy · Roguelite

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

Esports Godfather
Shared: Card Battler · Strategy · Turn-Based Tactics

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

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

Griftlands
Shared: Card Battler · Roguelite · Strategy

StarVaders
Shared: Turn-Based Tactics · Roguelite · Card Game

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

Cross Blitz
Shared: Card Battler · Roguelite · Strategy

NEOVERSE
Shared: Card Battler · Roguelite · Strategy

Into the Breach
Shared: Strategy · Turn-Based Tactics · Turn-Based Strategy

Your Only Move Is HUSTLE
Shared: Strategy · Turn-Based Tactics · Turn-Based Strategy

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

As We Descend
Shared: Card Battler · Turn-Based Tactics · Card Game

Stray Path
Shared: Card Battler · Strategy · Roguelite

Roguebook
Shared: Strategy · Card Game · Roguelite

