Games like SUR5
Games like SUR5 include Yu-Gi-Oh! Master Duel, Magic: The Gathering Arena, GWENT: The Witcher Card Game, Slay the Spire 2, and Infinity Wars: Animated Trading Card Game. We matched them by the tags players give SUR5 on Steam (Strategy, Indie, Deckbuilding, Massively Multiplayer, and Post-apocalyptic): closest matches first, and among equally close ones the better-known games.

Yu-Gi-Oh! Master Duel
Shared: Strategy · PvP · Free to Play

Magic: The Gathering Arena
Shared: Strategy · Deckbuilding · PvP

GWENT: The Witcher Card Game
Shared: Strategy · Deckbuilding · PvP

Slay the Spire 2
Shared: Deckbuilding · Strategy · Indie

Infinity Wars: Animated Trading Card Game
Shared: Strategy · Deckbuilding · Card Battler

Eternal Card Game
Shared: Strategy · Deckbuilding · Massively Multiplayer

Dota Underlords
Shared: Strategy · Free to Play · Turn-Based Tactics

The Bazaar
Shared: Strategy · Deckbuilding · PvP

Dota 2
Shared: Strategy · Free to Play · PvP

Shadowverse: Worlds Beyond
Shared: Deckbuilding · PvP · Strategy

Slay the Spire
Shared: Deckbuilding · Strategy · Card Battler

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

9 Kings
Shared: Strategy · Deckbuilding · PvP

Marvel Rivals
Shared: PvP · Free to Play · Multiplayer

Wizard101
Shared: Deckbuilding · PvP · Colorful

Plague Inc: Evolved
Shared: Strategy · Indie · Post-apocalyptic

World of Warships
Shared: PvP · Strategy · Free to Play

SMITE®
Shared: Strategy · Free to Play · Multiplayer

Inscryption
Shared: Deckbuilding · Card Battler · Strategy

Balatro
Shared: Deckbuilding · Strategy · Indie

ShellShock Live
Shared: Strategy · Indie · Multiplayer

Paladins®
Shared: PvP · Free to Play · Multiplayer

Monster Train 2
Shared: Deckbuilding · Strategy · Turn-Based Tactics

Rento Fortune: Online Dice Board Game (大富翁)
Shared: Strategy · Massively Multiplayer · Indie