Don’t make your activities and plans too difficult. Children don’t like to be bogged down with details. They’ll have more fun with simple games that allow them some freedom, and room for play.
Make your games age appropriate if you have children of different ages make sure you have rules even the younges children can follow without getting frustrated. Older children will generally still have fun with a simpler game but younger children will not understand a game that’s too complex.
All of the play at your child’s birthday party does not have to be organized. Let the children have some “free” time just to socialize, interact and play what they want.