What should I play next? I loved FNV.

I'm 55 and had a 20 year break from gaming due to family and career concerns. I just played through Fallout New Vegas 2x with VNV/SALVO. I loved it. I have more than 200 hours in it, which is more than any other game on Steam. I pretty much did everything you could.

Stuff I like:

Half-life (all)

Portal (all)

RDR2

BG1/2 (never really got into 3).

Nethack

Anything else that is a must play for me? I have a good computer with rtx3090 graphics card.