Out of the Park Baseball 27 is a text-based fantasy baseball simulation game that has captivated one reviewer for over 2,300 hours across multiple editions. Rather than offering graphical gameplay like MLB The Show, OOTP functions as an intricate spreadsheet where players assume the role of general manager to draft, manage rosters, and simulate seasons at their own pace. The game's appeal lies in its depth and flexibility, allowing players to experience the sport they love without the disappointment of real-world teams—particularly useful for long-suffering supporters like the reviewer, who is a Mets fan.

The simulation includes current and historical MLB players, all minor league teams, Korea's KBO League, and the World Baseball Classic, offering extensive player data and scouting reports to explore. Players can customise their experience extensively: simulating entire seasons in a few hours, manually playing individual games, adjusting injury frequency, or disabling budget constraints. OOTP Baseball 27 is positioned as a "cosy sim" designed for sports enthusiasts who enjoy fantasy baseball and advanced statistics, and it accommodates play sessions of any length, making it accessible for casual dipping in and out.