Not sure about DauT but pretty sure JorDan will age well. I love the ultraspecific recommendations also!
The key thing is cognitively demanding tasks ideally in a competitive environment. I don’t think video games are unique in this but probably the most accessible to people. You don’t realise how many systems you are juggling in these complex strategy games until you try to introduce someone else to it.
Chess has been my drug of choice for the last few years. Hugely cognitively demanding, more so than any other game I have played, but no reflexes or quick decision making trained.