Games like catfish
Games like catfish include Slay the Spire, Balatro, Monster Train, Inscryption, and Slay the Spire 2. We matched them by the tags players give catfish on Steam (Fishing, Card Battler, Deckbuilding, Roguelite, and Turn-Based Tactics): closest matches first, and among equally close ones the better-known games.

Slay the Spire
Shared: Card Battler · Deckbuilding · Roguelite

Balatro
Shared: Deckbuilding · Roguelite · Singleplayer

Monster Train
Shared: Card Battler · Roguelite · Deckbuilding

Inscryption
Shared: Card Battler · Deckbuilding · Roguelite

Slay the Spire 2
Shared: Deckbuilding · Card Battler · Roguelite

Dicey Dungeons
Shared: Card Battler · Deckbuilding · Roguelite

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

Stacklands
Shared: Card Battler · Roguelite · Deckbuilding

Ratropolis
Shared: Card Battler · Deckbuilding · Roguelite

Griftlands
Shared: Card Battler · Deckbuilding · Roguelite

Roguebook
Shared: Deckbuilding · Roguelite · Card Battler

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

Cross Blitz
Shared: Deckbuilding · Roguelite · Card Battler

StarVaders
Shared: Deckbuilding · Roguelite · Turn-Based Tactics

WEBFISHING
Shared: Fishing · Creature Collector · Cute

Loop Hero
Shared: Deckbuilding · Roguelite · Resource Management

DICEOMANCER
Shared: Card Battler · Deckbuilding · Strategy

DAVE THE DIVER
Shared: Fishing · Exploration · Casual

Cat Goes Fishing
Shared: Fishing · Cute · Exploration

NEOVERSE
Shared: Card Battler · Deckbuilding · Roguelite

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

Ballionaire
Shared: Deckbuilding · Roguelite · Singleplayer

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

Overdungeon
Shared: Card Battler · Deckbuilding · Roguelite