I've been playing for a long time. I play most days, either on line with TFC2, or solo with some older games I've kept over the years. Hell, I still have my original DOOM manual and receipt, but I lost the floppy disks. I just finished playing 3 hours of TFC2 on line.
If you have a good machine, there is a new DOOM that came out - DOOM Internal.
You can also get DOOM 2016 for less than $10 bucks on Steam. Oh, the other game I like is Serious Sam.