From the publisher’s rulebook
Who goes first in Is or Isn't?
SimplyFun English rules linked from product SKU SF192

The first person to say aloud the opposite of “up” goes first.
Source & edition
- Is or Isn't — SimplyFun rulesSimplyFun · Setup · Checked 2026-09-28
Image: © SimplyFun and credited artists · SimplyFun official product box image · Editorial fair use (Reduced, edition-specific game packaging used to identify the cited edition in an independent first-player-rule reference; it does not substitute for the game or artwork.)
Rule details
The basic game removes the six Flip cards; the selected variant tile is placed before play.
If there’s a tie
The rulebook doesn’t say.
Game night gear
More starting rules
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