I need help downloading unreal engine

is there a link maybe? i cant get it to download from my desktop app

as far as i know there are two methods to get the engine, first is to download via the launcher which is what your referring to as the desktop app i imagine, the second method is to build from source via files available on github. now ive never built from source so i cant help with details there but after a quick google search it seems like theres some tutorials out there or at least some information on the topic.