There is no one official rulebook for tag. Tag is older than any book. This page shows the base game most schools play — using the Playworks way of tagging safely — and then the famous versions, like Freeze Tag. This page has no sign-up and nothing to buy.
One player is It. It chases everyone else. If It tags you, you become It. That is the whole game — and it never really ends until recess does.
Players: 3 or more. Big groups may play with two or three Its at once. What you need: a space to run, with edges everyone agrees on.
Base: Many fields name one safe spot — a tree, a bench, home base — where a runner cannot be tagged, often with a count limit like "1, 2, 3, off base!" Base is a local rule, not part of plain tag. Agree on it before the chase.
"I tagged your shirt, not you": A touch on clothes counts as a tag on most playgrounds. Hair and backpack tags are argued everywhere — settle it in the group before someone cries foul.
Tagging too hard: Not a gray area. Playworks' butterfly-wing tag is the published safe standard, and a shove is a foul in every version of this game.
It — the chaser. The player who must tag someone else.
Tag — a light touch that passes "It" to the touched player.
Tag-back — tagging the player who just tagged you. Many groups ban it.
Boundaries — the edges of the playing area.
What if It can never catch anyone?
Add a second It, or shrink the boundaries. Most groups do both. Tag works best in a space that is not too big.
Can a runner leave the boundaries to escape?
No. Out of bounds is out of bounds. Many groups play that stepping out makes you It — agree first.
How does tag ever end?
It does not have a winner. Tag ends when the group decides — lunch, the whistle, or everyone agreeing to switch to Freeze Tag.
Sources: Playworks game library — safe tagging and "Bandaid Tag" (playworks.org) — and the common published versions of Freeze Tag, Shadow Tag, and TV Tag as printed in school PE game collections. Read and rewritten in our own plain words. Versions are labeled above because no single book owns this game.