Games like RWS
Games like RWS include Brawlhalla, Stick Fight: The Game, Sonic Superstars, ROUNDS, and Broforce. We matched them by the tags players give RWS on Steam (Action, Casual, 2D Fighter, Platformer, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

Brawlhalla
Shared: 2D Fighter · Casual · 2D Platformer

Stick Fight: The Game
Shared: Action · 2D Fighter · Multiplayer

Sonic Superstars
Shared: Action · Platformer · Casual

ROUNDS
Shared: 2D Fighter · Action · Multiplayer

Broforce
Shared: Action · Platformer · 2D

BlazBlue Entropy Effect
Shared: Action · 2D · Platformer

20XX
Shared: Action · Platformer · 2D Platformer

BattleBlock Theater®
Shared: Platformer · 2D · Multiplayer

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

Anomaly Agent
Shared: 2D Platformer · Platformer · 2D Fighter

Move or Die
Shared: Action · Multiplayer · 2D

LEGO® Brawls
Shared: Action · Casual · Platformer

Party Animals
Shared: Casual · Action · Multiplayer

Skul: The Hero Slayer
Shared: Action · 2D · Platformer

KarmaZoo
Shared: Action · Casual · Platformer

Among Us
Shared: Multiplayer · 2D · Casual

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

MARVEL Tōkon: Fighting Souls
Shared: Action · Casual · 2D Fighter

Gang Beasts
Shared: Action · Casual · Multiplayer

GrandChase
Shared: Action · Casual · PvP

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

Risk of Rain (2013)
Shared: Action · Platformer · Action Roguelike

JoJo's Bizarre Adventure: All-Star Battle R
Shared: Action · 2D Fighter · PvP

FOR HONOR™
Shared: Action · Swordplay · Multiplayer