Games like Valefor
Games like Valefor include Backpack Battles, 9 Kings, Slay the Spire, Slay the Spire 2, and The Bazaar. We matched them by the tags players give Valefor on Steam (Auto Battler, Inventory Management, Indie, Strategy, and Multiplayer): closest matches first, and among equally close ones the better-known games.

Backpack Battles
Shared: Auto Battler · Inventory Management · Strategy

9 Kings
Shared: Auto Battler · Strategy · Roguelike Deckbuilder

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

Slay the Spire 2
Shared: Strategy · Multiplayer · Roguelike Deckbuilder

The Bazaar
Shared: Auto Battler · Strategy · PvP

Turnbound
Shared: Auto Battler · Inventory Management · Roguelike Deckbuilder

Mechabellum
Shared: Auto Battler · Strategy · PvP

Balatro
Shared: Strategy · Roguelike Deckbuilder · Indie

Plague Inc: Evolved
Shared: Strategy · Indie · Multiplayer

Legion TD 2 - Multiplayer Tower Defense
Shared: Auto Battler · Strategy · Multiplayer

Toy Smash Kaboom!
Shared: Auto Battler · PvP · Multiplayer

Down with the Ship
Shared: Auto Battler · Inventory Management · PvP

Backpack Hero
Shared: Inventory Management · Roguelike Deckbuilder · Strategy

Oaken Tower
Shared: Auto Battler · Strategy · PvP

He is Coming
Shared: Auto Battler · Strategy · Roguelike Deckbuilder

Sid Meier’s Civilization® VI
Shared: Strategy · Multiplayer · Turn-Based

Gordian Quest
Shared: Strategy · Indie · Card Battler

Wretch: Divine Ascent
Shared: Auto Battler · Strategy · PvP

Monster Battles
Shared: Auto Battler · Inventory Management · Roguelike Deckbuilder

Dicey Dungeons
Shared: Roguelike Deckbuilder · Indie · Strategy

Buckshot Roulette
Shared: Multiplayer · Strategy · Indie

Batomon Showdown
Shared: Auto Battler · Strategy · Asynchronous Multiplayer

Despot's Game: Dystopian Battle Simulator
Shared: Auto Battler · Indie · Tactical

Knightica
Shared: Auto Battler · Inventory Management · Strategy