Find the hider in the dark!
A dark house and flashlights
This is exactly the same rules as hide and seek except you half to do it after dark and turn out all the lights in the house. Then the hider hides while the seekers count and then begin searching with flashlights on. Each seeker should have a flashlight. If little seekers are a bit scared, the hider can have a flashlight too with the rule that it must always stay on.
Try playing flashlight Sardines where the hider hides and then seekers hide with the first hider and turn off their flashlights. This goes on until all the seekers have found the hiders.