If you peruse the folder where it’s installed and compared to any UE4 or UE5 game, you’ll notice all the other similarities in .dll files, folders and whatnot. Even the CrashReporter.exe is the same you see in unreal games. Or you can check the config files at Epic Games\Launcher\Engine\Config which has stuff like BaseEngine.ini which, among other networking configurations, also has this:
Meanwhile, in Epic Games\Launcher\Portal\Config, the “game” part of the launcher, you have DefaultGame.ini and DefaultEngine.ini, the latter’s first 2 lines pointing back to the Engine folder: [Configuration]BasedOn=..\Engine\Config\BaseEngine.ini
So, yeah, it’s the actual engine. I was going to complain about disk bloat, but my Steam install is currently sitting at 1.3GB and I’m not entirely sure how much of that is from cached stuff. GOG Galaxy is taking ~980MB, but roughly 650MB are from redist installers (MSVC2005, 2007, dotnet, etc), so a “clean” install would be way lighter than Steam or EGS, the latter at 1.1GB on a clean install.
If you peruse the folder where it’s installed and compared to any UE4 or UE5 game, you’ll notice all the other similarities in .dll files, folders and whatnot. Even the CrashReporter.exe is the same you see in unreal games. Or you can check the config files at
Epic Games\Launcher\Engine\Configwhich has stuff like BaseEngine.ini which, among other networking configurations, also has this:[/Script/Engine.Engine] ConsoleClassName=/Script/Engine.Console GameViewportClientClassName=/Script/Engine.GameViewportClient LocalPlayerClassName=/Script/Engine.LocalPlayer WorldSettingsClassName=/Script/Engine.WorldSettings NavigationSystemClassName=/Script/NavigationSystem.NavigationSystemV1 NavigationSystemConfigClassName=/Script/NavigationSystem.NavigationSystemModuleConfig AvoidanceManagerClassName=/Script/Engine.AvoidanceManager PhysicsCollisionHandlerClassName=/Script/Engine.PhysicsCollisionHandlerMeanwhile, in
Epic Games\Launcher\Portal\Config, the “game” part of the launcher, you have DefaultGame.ini and DefaultEngine.ini, the latter’s first 2 lines pointing back to the Engine folder:[Configuration] BasedOn=..\Engine\Config\BaseEngine.iniSo, yeah, it’s the actual engine. I was going to complain about disk bloat, but my Steam install is currently sitting at 1.3GB and I’m not entirely sure how much of that is from cached stuff. GOG Galaxy is taking ~980MB, but roughly 650MB are from redist installers (MSVC2005, 2007, dotnet, etc), so a “clean” install would be way lighter than Steam or EGS, the latter at 1.1GB on a clean install.