Take your own advice? What games do they have not on some other developer’s engine? Other than their initial expansions for Half-Life, which are basically mods for Half-Life, all the games I know they have done were built on various iterations of Unreal Engine.
Take your own advice? What games do they have not on some other developer’s engine? Other than their initial expansions for Half-Life, which are basically mods for Half-Life, all the games I know they have done were built on various iterations of Unreal Engine.