Dungeon Field Guide
Identify the failure before changing files
Scroll the comparison sideways to see every column.
| Failure | First check |
|---|---|
| Cannot sign in or link an account | The account you are using, the error text and whether a retry changes the result. |
| Crash at startup or loading | Game update, hardware requirements and local file integrity. |
| Disconnect in a party | Whether solo online works and whether everyone is using the current party code. |
| Steam Deck text entry | The separate on-screen keyboard limitation. |
Try low-risk steps first
- Restart the game and apply available updates. Note the installed build so the report can be reproduced.
- On Steam, open the game’s Properties, select Installed Files and choose Verify integrity of game files. Wait for verification to finish before relaunching.
- Reproduce the problem once with the simplest setup you can use. Record whether it happens before sign-in, during loading or in a particular action.
- Send the exact error, platform, input method and reproduction steps through the official bug-report link. Never include passwords or authentication codes.
Do not start by deleting your hero
Online and offline heroes are separate, and account linking matters. Read save modes before assuming your progress disappeared. A different mode or account can show a different hero without the original save being deleted.
Use the right troubleshooting branch
For handheld text entry, use Steam Deck. For movement behavior, use controls. If the problem only happens when joining others, recheck crossplay and party codes. Submit a reproducible issue at the official bug reporter.