Question 1

Is Mastermind free to play?

Accepted Answer

Yes, Mastermind is 100% free to play in your browser with no download or signup required.

Question 2

How do I play Mastermind?

Accepted Answer

Pick 4 colors and submit your guess. Black peg = right color, right position. White peg = right color, wrong position.

Question 3

Can I play Mastermind on mobile?

Accepted Answer

Yes, Mastermind works on both mobile phones and desktop computers with touch and keyboard controls.