SO Night Games

[knlchevys]

So La's thread got me thinking about my 9 year old birthday party in a few weeks. It's his year to have a friend party. However, he doesn't have many friends. He has 4 he wants to invite over for a "late night/night games". Ummm what night games are there? I don't have a clue what they can play outside. It won't be "late" but late enough!! He doesn't even know but he always hears about night games and wants to play!! Help please, I'm stressed at the moment and any suggestions would help!