Games like King Arthur's Gold
Games like King Arthur's Gold include Terraria, Broforce, Stardew Valley, Duck Game, and Rivals of Aether. We matched them by the tags players give King Arthur's Gold on Steam (Multiplayer, 2D, Pixel Graphics, Action, and Building): closest matches first, and among equally close ones the better-known games.

Terraria
Shared: Multiplayer · 2D · Pixel Graphics

Broforce
Shared: Pixel Graphics · Action · 2D

Stardew Valley
Shared: Multiplayer · Pixel Graphics · Sandbox

Duck Game
Shared: Multiplayer · Pixel Graphics · 2D

Rivals of Aether
Shared: Multiplayer · Pixel Graphics · Indie

The Escapists 2
Shared: Multiplayer · Pixel Graphics · 2D

Awesomenauts
Shared: Multiplayer · 2D · Action

SMITE®
Shared: Multiplayer · Action · Free to Play

Once Human
Shared: Multiplayer · Action · Building

Garry's Mod
Shared: Multiplayer · Sandbox · Building

Medieval Dynasty
Shared: Multiplayer · Building · Medieval

SpeedRunners
Shared: Multiplayer · Indie · 2D

Skul: The Hero Slayer
Shared: Action · Pixel Graphics · Indie

Mount & Blade II: Bannerlord
Shared: Multiplayer · Medieval · Action

Move or Die
Shared: Multiplayer · Action · 2D

Forts
Shared: Multiplayer · Building · 2D

Necesse
Shared: Multiplayer · Pixel Graphics · Sandbox

Shovel Knight: Treasure Trove
Shared: Pixel Graphics · 2D · Indie

Forager
Shared: Pixel Graphics · 2D · Indie

Marvel Rivals
Shared: Multiplayer · Action · Free to Play

Chivalry: Medieval Warfare
Shared: Multiplayer · Action · Medieval

Katana ZERO
Shared: Pixel Graphics · Action · 2D

Cuphead
Shared: 2D · Multiplayer · Platformer

Rocket League®
Shared: Multiplayer · Team-Based · Competitive