One of the schools my girls went to in the past sent home this idea years ago and my kids love it. The ideas they brought home were for indoor table top games. These can be fun on rainy days but we wanted to add some games to play outside too so we went wild with ideas. There are no set games. Just have fun and make some up. Get creative the best ones are the ones that make you laugh. When you have all the games decided then you can start playing. Keep score or don't keep score. All that matters is that you do it together and have fun.
Ideas
Indoor Games
Table top races See who can get across the table the fastest. You can also do this on a floor with a set finish line. Use a straw to blow things like cotton balls. Use a straw in your mouth to try to roll things. Find things you have in your house that you can create events with.
Outdoor Games
Bean Bag Toss No bean bags? Try sock balls.
Bubble Blowing Contest Who can blow the biggest bubble?
Bowling Recycle those 2 liter soda bottles. Fill them part way with water and use them as pins. Any ball will do.
Tug of War
Egg & Spoon The old game of, try to carry an egg on a spoon race. Add in any obstacles you can think of.
Javelin Throwing Contest Pick funny things to throw. Try straws or paper airplanes.
Archery Bring out those squirt guns and foam dart guns.
Water Balloon Toss Two players face each other and toss a water balloon back and forth. After each throw the players take one step back away from each other. The player that misses loses and gets wet.
Water Balloon Baseball The pitcher throws the water balloon at the "batter". The batter catches the water balloon and must run the bases without breaking their balloon. In the meantime all outfield players have one balloon that they can use to try to get the player out. This game is a lot of fun but do not forget to pick up all the broken balloons afterwards.