Some obvious ones are Mother May I? and Red Light, Green Light. (Somewhere on this forum are suggestions for how to adapt Red Light, Green Light to different language tasks). Mother May I could also be adapted. They ask if they can take however many giant steps or whatnot and the "mother" can add a condition that they first say something in the target language.
You could also just take your group on an English Walk. (I'm making this up right now adapting it from a game I just started playing with my kids because we always have to walk from the school to a different building for English). You can decide on vocabulary or target language that is fun and easy to practise outside. We just work on naming things we see. "I see a house." "I see a car." But this could be made more elaborate. Anyway, I give them "points" for the things they name in English. They each get a small bag or baggie and I have a bag full of very small polished rocks which I purchased quite cheaply online. We walk a ways, I ask a question- either "What's that?" or "What do you see?" and if they answer correctly they get a point (a little rock in their bag). In my game we are actually in the middle of a dangerous journey through volcanic terrain to the "Forgotten Temple" - I described this on the "Teaching" thread under the post "This is Gold
". The fantasy element is very fun for the kids and allows them to make up different names for things. (Houses are volcanoes, streets are lava rivers etc.) Also it allows you, the English teacher, to add in some TPR elements. "Uh-oh we have to cross a river. Take off your shoes!" Etc.