Games like RPS Arena
Games like RPS Arena include Stick Fight: The Game, Brawlhalla, Rivals of Aether, Party Animals, and TowerFall Ascension. We matched them by the tags players give RPS Arena on Steam (Party Game, Retro, 4 Player Local, Arcade, and Action): closest matches first, and among equally close ones the better-known games.

Stick Fight: The Game
Shared: Action · 4 Player Local · 2D Fighter

Brawlhalla
Shared: 2D Fighter · Controller · Casual

Rivals of Aether
Shared: 2D Fighter · 4 Player Local · Local Multiplayer

Party Animals
Shared: Party Game · Casual · Action

TowerFall Ascension
Shared: Action · 2D Fighter · 4 Player Local

Gang Beasts
Shared: Party Game · Action · Casual

UFO 50
Shared: Retro · Action · Arcade

PAC-MAN 256
Shared: Retro · Arcade · Action

Overcooked! 2
Shared: 4 Player Local · Casual · Controller

Pummel Party
Shared: Party Game · 4 Player Local · Casual

Timberman
Shared: Casual · Action · Arcade

Tricky Towers
Shared: Party Game · Casual · Arcade

Duck Game
Shared: Action · 4 Player Local · Local Multiplayer

Move or Die
Shared: Action · 4 Player Local · Local Multiplayer

Vampire Survivors
Shared: Arcade · Casual · 2D

A Few Quick Matches
Shared: 4 Player Local · Casual · 2D Fighter

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

Broforce
Shared: Action · 2D · Pixel Graphics

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

Overcooked
Shared: Arcade · 4 Player Local · Casual

Planes, Bullets and Vodka
Shared: Retro · Action · Casual

Streets of Rage 4
Shared: Action · Arcade · Retro

Rubber Bandits
Shared: Party Game · Family Friendly · Casual

Timberman VS
Shared: Action · Casual · Arcade