I think you said it best with 'being stuck...', your gaming experience will be very limited to rtg games that perform well on an 040.
You can try to boot with alternate startups that degrade your system to run old software and have some success. I gave up a long time ago to make my 3k's play games that weren't design to run on it. The 32bit structure (bus, processor, etc.) make it difficult to use old games.
Even games that meet the specs of your 3k, will provide grief if you run any system performance enhancements and settings.
I use all of my 3k's for productivity and entertainment (non game ).
Good luck!
Matt