Since I teach kids who are non-native English speakers and who are also five and six years old, games are pretty indispensable. They're a good way for the kids to forget that they're actually learning something, and they're way more fun that worksheets any day.
I only actually have a few games that I play regularly; I just adapt them to each unit or subject as necessary.
One of my new games is for vocabulary review. I made this awesome spinner out of cardboard and a brad (plus laminate for the arrow - otherwise it would have totally dissolved by now).
I usually write a bunch of the vocabulary words on small strips of paper and put them in a cup to draw at random. I put the kids into two teams, and each team sends one delegate at a time to flick the spinner and do whatever it says to explain the vocabulary word I've chosen for them.

The choices are:
Act it Out (mime the word, using some sounds if necessary),
Spell it (write the word on the board),
Use it in a Sentence (orally),
Draw a Picture (on the board),
Define it (sometimes they need some prompting for this one - the concept of defining a word is a little foreign to some of them), and, of course,
Free Choice (their favorite - they get to choose which method they want to use).
If they really start to struggle, they can go to their team for a consult - but only if they want it!
The students really enjoy the variety of options here - it gives students with all different sorts of learning styles a time to shine!