Games like Boxing Simulator
Games like Boxing Simulator include Undisputed, Liftoff®: FPV Drone Racing, Session: Skate Sim, Wrestling Empire, and DRAGON BALL: Sparking! ZERO. We matched them by the tags players give Boxing Simulator on Steam (Action, Sports, 3D Fighter, Immersive Sim, and Indie): closest matches first, and among equally close ones the better-known games.

Undisputed
Shared: Sports · 3D · 3D Fighter

Liftoff®: FPV Drone Racing
Shared: Sports · Simulation · Indie

Session: Skate Sim
Shared: Sports · Action · Simulation

Wrestling Empire
Shared: Sports · 3D Fighter · Simulation

DRAGON BALL: Sparking! ZERO
Shared: Action · 3D Fighter · Multiplayer

Uncrashed : FPV Drone Simulator
Shared: Sports · Simulation · Immersive Sim

Grand Theft Auto V Legacy
Shared: Action · First-Person · Third Person

RUMBLE
Shared: Action · Sports · Early Access

Rooftops & Alleys: The Parkour Game
Shared: Sports · Simulation · First-Person

Pro Soccer Online
Shared: Sports · 3D · First-Person

Steep™
Shared: Sports · Action · Simulation

skate.
Shared: Action · Sports · Early Access

FPV Kamikaze Drone
Shared: Action · Simulation · First-Person

KovaaK's
Shared: Action · Indie · Simulation

Wreckfest
Shared: Action · Simulation · Sports

Storm Chasers
Shared: Action · Early Access · Indie

WARDOGS
Shared: Action · Simulation · Indie

ScooterFlow
Shared: Sports · Indie · Simulation

Arma 3
Shared: Action · Simulation · First-Person

Clone Drone in the Danger Zone
Shared: Action · 3D Fighter · Indie

The Drone Racing League Simulator
Shared: Action · Sports · Simulation

Into The Flames
Shared: Action · Simulation · Indie

House Flipper
Shared: Simulation · Immersive Sim · Action

Nuclear Option
Shared: Action · Simulation · 3D