There are a lot of fun flashlight games you can play with kids. These games are great to play if you are out in the wilderness while camping or even at home. You can find out more here if you want to get started on learning more.
One game you can play is telling scary stories. This is where one person has the flashlight and shines it under their chin as they tell the story. Just be careful, because some kids cannot handle scary stories. You have to make sure that you pick a story that is age appropriate for everyone because if you do not want kids to get scared and not want to camp any longer. If the kids are way too young then you may just want to do stories around the campfire that are a little lighter in subject matter.
If you have small kids you can play a game where they try to catch the light wherever you shine it. You could shine the light further into the area where you are at and get them to run after it and shut the light off right when they get to it. Then, you could shine it somewhere else so they could run and try to catch you again. This is, of course, something that would only be more fun for little kids. If you have all the kids you could let them join in on the fun and have them control the flashlight. Just make sure the children are not led to any areas that are dangerous this way.
The flashlight games to play with kids you were just taught about are fun for the whole family. Kids love to play new games, and you can make them a camping tradition. Just make sure that you bring enough batteries so the fun can go on if they run out!