Games like SIDExLINES
Games like SIDExLINES include Slay the Spire 2, Balatro, Slay the Spire, 9 Kings, and Dungeons & Degenerate Gamblers. We matched them by the tags players give SIDExLINES on Steam (Multiplayer, Card Game, Roguelike Deckbuilder, Strategy, and Card Battler): closest matches first, and among equally close ones the better-known games.

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

Balatro
Shared: Card Game · Roguelike Deckbuilder · Strategy

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

9 Kings
Shared: Strategy · Card Game · Multiplayer

Dungeons & Degenerate Gamblers
Shared: Roguelike Deckbuilder · Card Game · Strategy

Across the Obelisk
Shared: Roguelike Deckbuilder · Card Game · Casual

RACCOIN: Coin Pusher Roguelike
Shared: Strategy · Roguelike Deckbuilder · Casual

Monster Train
Shared: Card Game · Card Battler · Strategy

Inscryption
Shared: Card Game · Card Battler · Strategy

Dicey Dungeons
Shared: Roguelike Deckbuilder · Card Battler · Card Game

DICEOMANCER
Shared: Card Game · Strategy · Roguelike Deckbuilder

Magic: The Gathering Arena
Shared: Card Game · Strategy · Multiplayer

UNO
Shared: Multiplayer · Card Game · Strategy

Monster Train 2
Shared: Card Game · Roguelike Deckbuilder · Strategy

Die in the Dungeon
Shared: Card Game · Strategy · Roguelike Deckbuilder

Wildfrost
Shared: Card Game · Roguelike Deckbuilder · Card Battler

Astrea: Six-Sided Oracles
Shared: Roguelike Deckbuilder · Card Game · Card Battler

Dungeon Clawler
Shared: Roguelike Deckbuilder · Strategy · Gambling

Bloons TD 6
Shared: Multiplayer · Strategy · Casual

Ratropolis
Shared: Card Battler · 2D · Strategy

My Card Is Better Than Your Card!
Shared: Card Game · Strategy · Roguelike Deckbuilder

Breachway
Shared: Card Game · Strategy · Roguelike Deckbuilder

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

Stacklands
Shared: Card Game · Card Battler · Strategy