Games like The Dark Cave
Games like The Dark Cave include Monster Train, Slay the Spire, Slay the Spire 2, Trials of Fire, and Balatro. We matched them by the tags players give The Dark Cave on Steam (Card Battler, Turn-Based Tactics, Tactical RPG, Roguelite, and Dungeon Crawler): closest matches first, and among equally close ones the better-known games.

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

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

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

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

Balatro
Shared: Card Game · Roguelike · Roguelite

Marvels Midnight Suns Digital Edition
Shared: Turn-Based Tactics · Tactical RPG · Turn-Based Strategy

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

9 Kings
Shared: Auto Battler · Card Game · Roguelite

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

Inscryption
Shared: Card Battler · Card Game · Roguelite

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

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

Hadean Tactics
Shared: Card Battler · Auto Battler · Dungeon Crawler

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

Super Fantasy Kingdom
Shared: Roguelite · Auto Battler · Card Battler

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

He is Coming
Shared: Roguelite · Auto Battler · Dungeon Crawler

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

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

Inkbound
Shared: Turn-Based Tactics · Tactical RPG · Roguelite

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

Loop Hero
Shared: Roguelite · Roguelike · Card Game

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

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