UE4 built from source takes 170GB disk space

[Ares9323]

@jwatte

Is your git folder a shallow checkout? You probably don’t want all the old versions and separate branches.

I cloned only the 5.3 branch, using the following command that I got from stackoverflow:

git clone https://github.com/EpicGames/UnrealEngine.git --branch 5.3 --single-branch UE_5.3

@AActor_424

I was able to reduce the build sitze from around 300GB to 160 GB. I think the mistake I made was that I built the entire solution instead of only the containig UE5 project.

I probably did the same accidentally, I’ll try to rebuild it as soon as I have some free time! Thank you for pointing this out!

It’s funny anyway because we’re happy that UE5.3 is “just 160GB” while the OP was complaining about its 170GB size