Hopscotch is a game over 200 years old, which I remember fondly from my school days.
I think kids today would enjoy it just as much as I did - and it's educational too.
You can buy ready-made tiles or mat from Amazon:
For this childrens game you can buy a ready-made mat, or you can mark it out on the ground with chalk, like we used to do at school "in the olden days"!
Create 8 sections in a line, a couple side by side. Number them 1 to 8. Each player is given a marker such as a stone, bottlecap, button etc.
The first player stands behind the starting line to toss his/her marker into square 1.
They hop over square 1 to square 2 and then continue hopping to square 8, turn around, and hop back again. Pause in square 2 to pick up the marker from square 1, hop in square 1, and out.
They then throw their marker into square 2 and leave it there until their next turn.
The next person does the same and so on. All hopping is done on one foot unless the game design is such that two squares are side-by-side. Then two feet can be placed down, with one in each square.
A player must always hop over any square where a marker has been thrown.
A player is out if the marker doesn’t land in the proper square, they step on a line when hopping or if they lose their balance when bending over to pick up the marker and put a second hand or foot down. They are also out if they go into a square with a marker or if they put two feet down in a single box.
Sometimes a dome-shaped rest area is added on one end of the pattern where the player can rest for a couple of seconds before hopping back through the squares.