Hey Ryan, sounds like a fun time! We’ve done a bunch of these backyard hangs, and a few games always get people into it.
Ladder toss has been a big hit at ours. easy to set up and people get competitive fast lol. also had a lot of fun doing a DIY trivia game once and just split everyone into teams and did random questions, drinks involved haha. Simple, but it kept folks laughing.
If your group’s into it, water balloon toss or even an adult version of musical chairs with pool floats can get pretty wild. also seen people do a “flip cup tournament” outside, messy but fun.
The point is, it doesn’t have to be fancy. Stuff that gets people moving or laughing usually wins.