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If Operation Mastermind is a current, supported game, support its creators. If it is an out-of-print classic, seek out legally abandoned or fan-reconstructed versions with permission. Either way, keep your antivirus active, your conscience clear, and your dice ready.

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4. Use Open Source Alternatives

If you cannot find a legal free version of Operation Mastermind, consider adopting an open-source wargaming system with similar mechanics. For example:

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