Games like G-Rebels
Games like G-Rebels include War Thunder, Arma 3, Project Wingman, VTOL VR, and Grand Theft Auto V Legacy. We matched them by the tags players give G-Rebels on Steam (Action, Flight, Vehicular Combat, Open World, and Sci-fi): closest matches first, and among equally close ones the better-known games.

War Thunder
Shared: Action · Vehicular Combat · Flight

Arma 3
Shared: Action · Shooter · Open World

Project Wingman
Shared: Action · Flight · Arcade

VTOL VR
Shared: Flight · Action · Combat

Grand Theft Auto V Legacy
Shared: Action · Open World · Shooter

ACE COMBAT™ 7: SKIES UNKNOWN
Shared: Flight · Shooter · Arcade

FPV Kamikaze Drone
Shared: Action · Shooter · Flight

Cyberpunk 2077
Shared: Open World · Sci-fi · Cyberpunk

Fallout 4
Shared: Open World · Action · Shooter

ACE COMBAT 8: WINGS OF THEVE
Shared: Action · Flight · Vehicular Combat

STAR WARS™: Squadrons
Shared: Flight · Action · Sci-fi

Elite Dangerous
Shared: Open World · Sci-fi · Action

RAGE 2
Shared: Action · Open World · Vehicular Combat

Half-Life 2
Shared: Action · Sci-fi · Shooter

STAR WARS™ Battlefront™ II
Shared: Shooter · Action · Sci-fi

Battlefield™ 2042
Shared: Action · Shooter · Combat

Halo Infinite
Shared: Action · Shooter · Open World

BioShock Infinite
Shared: Action · Shooter · First-Person

Ghosts of Tabor
Shared: Action · Shooter · VR

Microsoft Flight Simulator X: Steam Edition
Shared: Flight · Open World · Action

Starship Troopers: Extermination
Shared: Action · Sci-fi · First-Person

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: Open World · Shooter · Action

Fallout: New Vegas
Shared: Open World · Action · First-Person

Grand Theft Auto V Enhanced
Shared: Action · Open World · Shooter