My gut feeling is you'll be fine. Loading makes a big difference. If the games are close to the wall, that's obviously better than if all the games were in the middle of the room. And consider that a pin might weigh 200-250+ lbs, but it is distributed over four legs that are a ways apart. A 250 lb person puts all that weight in a small spot. And the pins will help keep the load from occupants getting too out of hand because they take up a bit of space.

Building codes are pretty conservative and try to take in to account weird loadings and situations. But you can't design for every possible scenario. If the beams have any lateral bracing, you'll be in much better shape than if there's none. The beams in my home are doubled up about every 4', and that also helps. How old is the home?

Now if you said you were having a pinball dance party with 35-40 people jumping around the games, I might give a different answer.

You'll be fine. You have an open modern home, everyone won't be crammed in tightly and the games will be spaced out near the wall.

Like I said in my post, it is also very important how the load is distributed. Some weird loading conditions can make things fail even when you are under the design loads. And dynamic loading changes things on top of that (people dancing, jumping, etc.)

I'm not saying you won't be fine, I'm just splitting hairs. It isn't as simple as X lbs/sqft.

Memories...haven't done this in a while.

shear moment (resized).png

Just an engineering reference for anyone that had to endure hours of shear moment diagrams.

I haven't done them in a really long time and I didn't even really look at it, I just grabbed an image off a search.