Games like DunDie
Games like DunDie include Monster Train, Slay the Spire, Slay the Spire 2, Vampire Crawlers: The Turbo Wildcard from Vampire Survivors, and LONESTAR. We matched them by the tags players give DunDie on Steam (Card Battler, Turn-Based Tactics, Strategy, Dungeon Crawler, and Roguelite): closest matches first, and among equally close ones the better-known games.

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

Slay the Spire
Shared: Card Battler · Strategy · Roguelite

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

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

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

Darkest Dungeon® II
Shared: Turn-Based Tactics · Roguelite · Dungeon Crawler

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

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

Balatro
Shared: Strategy · Roguelike · Roguelite

Dice & Fold
Shared: Card Battler · Dungeon Crawler · Turn-Based Tactics

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

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

Black Book
Shared: Card Battler · Turn-Based Tactics · Dungeon Crawler

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

Crown Trick
Shared: Dungeon Crawler · Roguelite · Strategy

HELLCARD
Shared: Card Battler · Roguelite · Strategy

Inscryption
Shared: Card Battler · Strategy · Roguelite

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

Cross Blitz
Shared: Card Battler · Roguelite · Strategy

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

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

9 Kings
Shared: Strategy · Card Battler · Roguelite

STAR WARS Zero Company™
Shared: Turn-Based Tactics · Strategy · Turn-Based Strategy

Inkbound
Shared: Turn-Based Tactics · Roguelite · PvE