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TOOLS

PC gaming tools and quick references

Useful pages to keep nearby when a game stops working or before you change files.

English tools and guides

PC Game Diagnosis for WindowsChoose an installed game and its symptoms, review diagnostic information and keep track of the steps you try. Read the unsigned prototype’s limits before downloading.PC game crash troubleshootingWork through safe checks one at a time without downloading the diagnosis app.Save backups and storageLearn how to keep a separate copy of your saves and choose suitable storage before changing files.

More tools, currently in Japanese

These pages open the existing Japanese tools. They do not have an English interface yet.

Service status and maintenance (Japanese)Discord status, official game maintenance schedules and announcements.My PC and games (Japanese)A hardware checklist saved in your browser to help estimate whether your PC meets each listed game’s requirements.Save-file locations (Japanese)Copyable save and configuration paths for popular PC games.Gaming keyboard shortcuts (Japanese)Keyboard shortcuts for unresponsive games and display problems.Refresh-rate check (Japanese)A browser-based estimate to help check the display’s refresh rate.New-release PC requirements (Japanese)System requirements for the listed October 2026 PC releases in one place.