Games like SpaceBoots
Games like SpaceBoots include Stick Fight: The Game, STAR WARS™ Battlefront™ II, Broforce, Duck Game, and PUBG: BATTLEGROUNDS. We matched them by the tags players give SpaceBoots on Steam (Action, Local Multiplayer, 2D, Space, and Combat): closest matches first, and among equally close ones the better-known games.

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

STAR WARS™ Battlefront™ II
Shared: Action · Space · Shooter

Broforce
Shared: Action · 2D · Local Multiplayer

Duck Game
Shared: Local Multiplayer · Action · 2D

PUBG: BATTLEGROUNDS
Shared: Action · Battle Royale · Shooter

SpeedRunners
Shared: Local Multiplayer · Action · 2D

Apex Legends™
Shared: Action · Battle Royale · Shooter

DRAGON BALL FighterZ
Shared: Action · Local Multiplayer · Controller

Among Us
Shared: Space · 2D · Local Multiplayer

Awesomenauts
Shared: Action · 2D · Controller

TEKKEN 7
Shared: Action · Local Multiplayer · Controller

Pixel Gun 3D: PC Edition
Shared: Action · Shooter · Combat

Dome Keeper
Shared: Action · Combat · Sci-fi

Strike Force Heroes
Shared: Action · 2D · Shooter

ROUNDS
Shared: Local Multiplayer · Action · 2D

STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Shooter · Space

Move or Die
Shared: Local Multiplayer · Action · 2D

eFootball™
Shared: Controller · Local Multiplayer · Football (Soccer)

Rivals of Aether II
Shared: Local Multiplayer · Action · Combat

TowerFall Ascension
Shared: Local Multiplayer · Action · 2D

EVERSPACE™
Shared: Action · Space · Space Sim

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

Starship Troopers: Extermination
Shared: Action · Combat · Sci-fi