First, break up into teams to be "it" or one person can be "it". Then, you decide where the bases and jail are.
The person/people count to ten to give the people a chance to run. If you get to base, you can only stay there for 30 seconds then you have to leave, there is allowed guarding by another person. If you get tagged, then you go to jail until someone tags you and says jail-break, then you run free. If you are tagged more than 5 times, the fifth time you are tagged you stay in jail for the rest of the game.
Once you get everyone in jail the other team is "it" or if it's a single player he/she will pick who is "it" next. Have fun and enjoy!!!!