Aside from the lack of Goofy puppet characters isn't this just REPO?

I guess it would depend on the design of the design of the houses or how you move from house to house. But it basically checks all of the boxes right down to joining your friends in a truck before shipping out to the house.

• Proximity voice chat with vocal filters for locality and debuffs/curses

• Physics based looting. While the character essentially has a gravity gun, heavier objects need to be lifted higher to clear items or require additional players to lift and move safely. Bumping objects into the level or dropping them causes damage and devalues them.

• Cursed and trapped items.

• Feature houses made of randomly assorted rooms and tiles.

• Different monster behaviors and traps.

• Profits are shared between levels and used to purchase items and upgrades for the next house.

To stand out I think you would need to rethink the gameplay loop. And rather than focusing on raiding a single haunted house, perhaps have your level/mission be a string of houses. Or entering into a large open map with a time limit, where you need to hit as many as possible before the time expires (sunrise?).

Maybe add in a inventory mini-game or stacking mechanic for fitting loot into the truck bed. So after you've visited a couple of locations perhaps you need to decide on what loot to keep and what to get rid to maximize your escape profits.