What is האקדח של צ'כוב?

No — it’s a tool, not a rule. It encourages purposeful details and tighter plots. Writers can still include red herrings or decorative elements, but they should either pay off, reveal character, or be clearly ornamental for tone rather than accidental clutter.

Not at all. It includes recurring lines, promises, habits, background facts, and even a song lyric. Anything introduced that could plausibly matter later can function as a gun when it’s later used to create emotional or plot payoff.

Plan multiple planted elements that can be triggered by different player choices so each branch has earned payoffs. Use small, frequent payoffs (a revealed secret, a remembered phrase) to keep momentum, and reserve bigger 'guns' for major turning points to avoid overloading every path with the same reveal.