Games like Spell Swap
Games like Spell Swap include Brawlhalla, Stick Fight: The Game, Rivals of Aether, Rivals of Aether II, and ROUNDS. We matched them by the tags players give Spell Swap on Steam (Action, 2D Fighter, Local Multiplayer, Multiplayer, and Split Screen): closest matches first, and among equally close ones the better-known games.

Brawlhalla
Shared: 2D Fighter · Multiplayer · Local Multiplayer

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

Rivals of Aether
Shared: 2D Fighter · Multiplayer · Local Multiplayer

Rivals of Aether II
Shared: 2D Fighter · Multiplayer · Action

ROUNDS
Shared: Multiplayer · Local Multiplayer · 2D Fighter

DRAGON BALL FighterZ
Shared: Action · 2D Fighter · Multiplayer

Duck Game
Shared: Multiplayer · Local Multiplayer · Action

Bopl Battle
Shared: 2D Fighter · Action · Multiplayer

TowerFall Ascension
Shared: Local Multiplayer · 2D Fighter · Action

Broforce
Shared: Action · Multiplayer · 2D

SpeedRunners
Shared: Multiplayer · Local Multiplayer · Action

Move or Die
Shared: Action · Multiplayer · Local Multiplayer

Street Fighter™ 6
Shared: 2D Fighter · Action · Multiplayer

Stick It to the Stickman
Shared: Action · Multiplayer · 2D Fighter

GUILTY GEAR -STRIVE-
Shared: 2D Fighter · PvP · Multiplayer

Mortal Kombat 11
Shared: Action · Multiplayer · 2D Fighter

Skullgirls 2nd Encore
Shared: 2D Fighter · Multiplayer · Local Multiplayer

JoJo's Bizarre Adventure: All-Star Battle R
Shared: Action · Multiplayer · PvP

Nidhogg
Shared: Local Multiplayer · 2D Fighter · Action

Awesomenauts
Shared: Multiplayer · Action · 2D

A Few Quick Matches
Shared: 2D Fighter · Action · Multiplayer

TEKKEN 7
Shared: Action · Multiplayer · Local Multiplayer

DRAGON BALL: Sparking! ZERO
Shared: Action · Multiplayer · Local Multiplayer

Mortal Kombat X
Shared: Action · Multiplayer · Local Multiplayer