Someone over at DF wanted some details about how this game is different from games like Labyrinth Lord, so I will paste my response here:
Here are some of the differences between WIZARDS' WORLD and your "typical" fantasy game:
Spells work on a spell point system.
There are three new PC races, Metamorphic Dwarves, Demon Halflings, and Vampires.
Armour reduces damage.
Combat progression for most classes isn't just level based, but also works in increments between levels (combat is based on percentile dice).
There are new classes-- The Attacker (kind of like a berserker), The Defender (a fighter-type who specializes in shield use), The Scout, The Spy, and The Jester.
Overall there are some interesting design elements to this game, which is even more intriguing when you consider that it was published in 1983 so it had fewer examples of other work to build on.