Games like Rune It Out
Games like Rune It Out include Broforce, Duck Game, Magicka, WARDOGS, and PUBG: BATTLEGROUNDS. We matched them by the tags players give Rune It Out on Steam (Action, Magic, Multiplayer, Fantasy, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Action · Pixel Graphics · Multiplayer

Duck Game
Shared: Multiplayer · Action · Pixel Graphics

Magicka
Shared: Action · Magic · Fantasy

WARDOGS
Shared: Action · Multiplayer · PvP

PUBG: BATTLEGROUNDS
Shared: Multiplayer · Action · PvP

Pixel Gun 3D: PC Edition
Shared: Multiplayer · PvP · Action

Terraria
Shared: Multiplayer · Pixel Graphics · 2D

Apex Legends™
Shared: Multiplayer · Action · PvP

Stick Fight: The Game
Shared: Multiplayer · Action · PvP

Paladins®
Shared: Multiplayer · Action · PvP

Magicka 2
Shared: Magic · Multiplayer · Action

Party Animals
Shared: Multiplayer · Action · Cute

Grand Theft Auto V Legacy
Shared: Action · Multiplayer · PvP

Squad
Shared: Multiplayer · PvP · Action

Them's Fightin' Herds
Shared: Action · Multiplayer · Cute

Gang Beasts
Shared: Multiplayer · Action · PvP

Arma 3
Shared: Action · Multiplayer · Tactical

Counter-Strike
Shared: Action · Multiplayer · Tactical

DJMAX RESPECT V
Shared: Action · Multiplayer · Cute

Counter-Strike: Source
Shared: Action · Multiplayer · PvP

Superfighters Deluxe
Shared: Action · Multiplayer · Pixel Graphics

Call of Duty®
Shared: Multiplayer · Action · Tactical

King Arthur's Gold
Shared: Multiplayer · Action · Pixel Graphics

Timberman
Shared: Action · Multiplayer · Pixel Graphics