Pico Park is fun. https://www.co-optimus.com/game/7748/pc/pico-park.html

It’s a portable sauna booth. It’s way more compact than what the walmart photo depicts. You can barely put a small chair in it and stay sit down. It looks unconfortable.

Advance War feels modern. It’s a great suggestion.

MetalSlug is fun but it’s hard without infinite credits.

For the curious, there is a video.
https://www.amazon.com/Radiant-Saunas-Rejuvinator-Portable-Personal/dp/B00MX19M9E

I have seen it up to 2,7€/L here in France. The average price is 2,3€/L yet.

You can play Factorio in coop? Is it good? This games looks like very personnal.