Labs_underpass_p.upk May 2026

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

Move your renamed custom map into the mods folder. Labs_Underpass_P.upk

No, you can ignore the universal Mods.upk file for this method. Disclaimer: Modding Rocket League is done at your own risk

When using Park_P instead of Underpass, forgetting to rename the file back can cause you to get a 15-min ban if you join a competitive playlist and Beckwith Park appears. Using Underpass reduces this risk. Labs_Underpass_P.upk

You don’t need to swap files between playing online and playing offline.