I’m with you on most pool games ending up as shed decor.
The only one that’s survived multiple summers at our place is stupid simple, dive for poker chips. No hoop, no net, no inflatable anything. I just toss a handful of weighted poker chips or sinkable rings into the deep end and everyone has to grab as many as they can in one breath. That’s it. Sounds basic but adults get weirdly competitive about it.
What makes it stick is there’s no setup and no “teams.” People jump in whenever they feel like it, do a round, then float and talk. Then someone yells rematch and it starts again. It doesn’t dominate the whole party like volleyball can. It kind of blends into the hangout.
One thing I learned though, if you’re doing repeated dives with a higher bather load, circulation matters. The first time we did it a lot, I noticed my filter pressure was up a few psi the next morning from all the stirred up debris that had settled in the deep end. Now I make sure I start with a clean baseline and angle my returns slightly downward before we start so nothing just sits in one cold pocket of water.
Also, keeping pH from drifting high helps the water feel less “flat” when people are going under a lot. When it creeps up toward 7.8 the water just feels heavier, even if numbers technically look fine.
Low gear, low drama, and it doesn’t feel like organized sports. That’s the only type that’s actually lasted for us. Everything else eventually gets ignored.