This whole classroom or small group game was an extremely well-received game to encourage correct spelling while I taught English abroad. There are many variations you can correct once you're familiar with this one. All rules are included and I would recommend the game for students in 3rd-8th grades.
The game utilizes a large board (any type - white, black, interactive) and different colored markers. Teams can be as large as you'd like and you can even split the room into three or four groups if you've got a board that's large enough.