This directed energy field has the power to function as solid matter for people who aren't invited, while being completely permeable to anyone else. I guess that makes it a door.
Forcefield price in Growtopia: sells for about 5 WL, buyers pay about 2.75 WL (median of 878 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.
Recently sold at: JAMI00, 161L, JUGUSHI, DMIK, RIKNN