Rampart

The Good
Where to begin? The gameplay is simple but surprisingly addictive. You really have to scramble to build up your castle within a very limited time, and once the battle starts you've gotta scramble even more to take out the enemy ships. Pure frenetic action, and what old-school gaming is all about.

The Bad
Massively difficult, at least for newbies. Rampart is not for the faint of heart -- the computer will tear you to shreds if you don't know exactly what to do.

The Bottom Line
A very fun game from the late-80s/early-90s era which is hands-down superior to 99% of the crap that's come out since Quake ushered in the 3D era.