I have played this in my after school and my summer camp. I work in a middle school
First is a version of hide and go seek. You will need one blindfold which can be bought for about 2,000 won.
One person is it, they have to wear the blindfold. Lead them out of the class for about 30 seconds. The other students can hide anywhere in the classroom but they can't move the furniture. When I say time they aren't allowed to move anymore. Bring in the blindfolded student. They have to wonder around the class and try to find one other student. Follow behind them to make sure they don't hurt themselves. Don't play for too long or else the students will get bored with it.
Second. This can be combined with a directions English lesson. I found a version of this on a website somewhere and changed it a bit. I call it tank. You will need blindfolds for half of the class and an equal number of small soft balls. Pair the students up. If there is an odd number then you pair up with a responsible student. One person will wear the blindfold and have the ball, they are the "tank". The other person is the "driver." The driver gives directions to the tank, walk straight, turn left, turn right, duck, throw, etc. The object of this game is to hit other tanks. If a ball hits another pair they are out. Play until there is one team left. To make it harder the driver has to guide the tank to the ball. To make it easier the driver chases and returns the ball. After the first round have the partners switch. If there is an odd number and you are paired with a student you will guide them and watch the other teams. In the second round the student you are paired with will do the same. I played twice before some of the students got bored.