The Nanjing Massacre: Rabe's Diary "is a survival management game based on the true history of the Nanjing Massacre and the humanitarian deeds of John Rabe. The game adopts the "60 second" resource management core play method, integrating historical narrative and strategic decision-making elements. The player will play the role of German businessman John Rabe, allocating limited resources in the Nanjing security zone, and saving as many Chinese refugees as possible. This game aims to provide players, especially the younger generation, with an immersive experience of learning about this history through interactive media.

The core gameplay is mainly divided into two core stages: the emergency preparation stage (similar to the "60 second" resource collection in the first 60 seconds) and the camp management stage (long-term resource allocation and event decision-making). At the beginning of the game, players will have limited time to collect key resources such as food, building materials, and fuel around Nanjing before the Japanese army captures the city. They will then enter the safety zone management stage, facing various random events every day (such as refugee influx, Japanese inspections, disease outbreaks, etc.), and need to make strategic decisions that affect survival rates.