Labs_underpass_p.upk Direct

Create a backup of the original Labs_Underpass_P.upk to avoid losing the default map.

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

Ultimate Guide to Custom Maps in Rocket League: Mastering Labs_Underpass_P.upk Labs_Underpass_P.upk

For easier management, consider using the Rocket League Map Manager on GitHub to switch between custom maps automatically.

Open the game, select "Freeplay" (or local match) and choose "Underpass". Your custom map will now load. Pro Tips for Map Modding Create a backup of the original Labs_Underpass_P

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?

This method is primarily for local play and Freeplay. Labs_Underpass_P.upk

Take the custom .upk file you downloaded and rename it exactly: Labs_Underpass_P.upk .