I love good typography. Perfect kerning and a beautiful typefaces in just the right color can make a good design, great! Which is probably why i find typography games so fun and addictive. I really enjoy playing the Kerning game (KernType) where you can try your hand at creating the perfect space between letters on a variety of fonts. My average score is 93, let me know in the comments what yours is!
Another really fun game is Shape Type, where you can practice shaping a letter form by dragging the handles of an anchor point, much like you do in adobe illustrator to draw the exact shape you need. It might take a bit of practice, but its really satisfying to see how close you can get to the original letter!