Games like Standalone: Synergy
Games like Standalone: Synergy include Slay the Spire, Gordian Quest, 9 Kings, Black Book, and Slay the Spire 2. We matched them by the tags players give Standalone: Synergy on Steam (Adventure, RPG, Strategy, Card Game, and Strategy RPG): closest matches first, and among equally close ones the better-known games.

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

Gordian Quest
Shared: RPG · Card Game · Adventure

9 Kings
Shared: RPG · Strategy · Card Game

Black Book
Shared: Card Battler · Card Game · RPG

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

Chrono Ark
Shared: RPG · Strategy · Adventure

Cross Blitz
Shared: RPG · Card Game · Strategy

Monster Train
Shared: Card Game · Card Battler · Roguelite

Baldur's Gate 3
Shared: RPG · Adventure · Character Customization

Super Fantasy Kingdom
Shared: RPG · Strategy · Card Game

Inscryption
Shared: Card Game · Card Battler · Strategy

He is Coming
Shared: Strategy · RPG · Card Game

Griftlands
Shared: RPG · Card Battler · Roguelite

HELLCARD
Shared: RPG · Card Battler · Strategy

Overdungeon
Shared: Strategy · RPG · Card Battler

Aces & Adventures
Shared: Adventure · Strategy · Card Game

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

GWENT: The Witcher Card Game
Shared: Strategy · RPG · Card Game

The Bazaar
Shared: Strategy · Card Game · Card Battler

Roguebook
Shared: RPG · Card Game · Strategy

Marvels Midnight Suns Digital Edition
Shared: Card Game · RPG · Strategy RPG

Solasta: Crown of the Magister
Shared: RPG · Adventure · Strategy RPG

觅长生
Shared: RPG · Strategy · Strategy RPG

NEOVERSE
Shared: Card Battler · Card Game · Roguelite