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Checkmate Protocol Protect the King at all costs! Fight alone, or team up with an arsenal of rifles, handguns, and chainsaws to defeat waves of oncoming attackers. Chess has changed a lot since you last played... Welcome to the real world, nerd.
Checkmate ProtocolSteam players
As of —
Players, last 60 days30-day average
—No reading yet
Polled every 30 days
Price and Sale HistoryNo price on the US Steam store for Checkmate Protocol: free, not yet for sale, or not checked yet.
Screenshots
Data coverage| Data | Collected | Observed since | Last success |
|---|---|---|---|
| News and patch notes | Every 30 days (dormant tier) | — | — |
| Player counts | Every 30 days (dormant tier) | — | — |
| Store details | Weekly, and when Steam reports a change | 19 Oct 2026 |
Busier games are polled more often. Source: Steam Web API. Not affiliated with Valve.
