DVD for G3 Blue & White

I don't see why not. Though unless you have USB 2.0 on it, you probably won't get amazing quality for games cause you couldn't access the disk fast enough.

If you can load OS 10.x, I might suggest going with a firewire card and an external drive. Mac compatible stand-alone DVD ROMS and RAM drives can be found for not to much more than bay installable. By not much money mean 20-50 $ U.S (only 50$, on the other hand 50% more)., But really, the investment can be transported laterally. Lacie.com sometimes has reconditioned firewire400 and 800 optical drives. Unless the bus speed of the G3 is enhanced, 400 may even be overkill.

Some links.
http://www.2ndchancepc.co.uk/g3-mac-upgrade-guide.html

Perhaps FastMac has some dvd drives.

In the end it may be a Pyrrhic victory.