Labs_underpass_p.upk <Trusted Source>

This guide will walk you through setting up, testing, and managing custom maps using the Labs_Underpass_P.upk file method. What is Labs_Underpass_P.upk?

It is considered one of the best methods to load custom maps on PC. How to Set Up Custom Maps (Step-by-Step)

Have you ever wanted to play custom Rocket League workshop maps but felt lost with the file management? The most effective way to play custom maps on PC is by utilizing the map as a base. Labs_Underpass_P.upk

You can directly create or import meshes and textures inside your level package.

Take the custom .upk file you downloaded and rename it exactly: Labs_Underpass_P.upk . This guide will walk you through setting up,

Find your Rocket League map folder, usually located here: Documents\My Games\RocketLeague\TAGame\CookedPCConsole\mods

Create a backup of the original Labs_Underpass_P.upk to avoid losing the default map. How to Set Up Custom Maps (Step-by-Step) Have

Disclaimer: Modding Rocket League is done at your own risk. Always backup your files. Map files & packages - RL Modding Wiki