Even with a perfect save editor, things go wrong.
Error: "Invalid save string"
Error: Game resets to zero after import
Error: "Undefined" in editor fields
Most Mr. Mine save editors work the same way: Save Editor Mr Mine-
The Mr. Mine community is split. Purists say editing ruins the “idle” spirit. Others argue it’s a single-player game—play how you want.
My take: Don’t use a save editor on your first run. The slow discovery of new depths is the game’s real charm. But on a second playthrough? Go ahead. Give yourself a trillion dollars and drill to Mars.
The editor usually accepts the exported save string or the raw JSON data extracted from localStorage.
⚠️ Note: Save editors are not official. Use at your own risk. Even with a perfect save editor, things go wrong
Mr. Mine is a popular idle/clicker mining game on platforms like Kongregate and CrazyGames. Progress can be slow — especially in the late game with deep digging, company management, and angel investors. That’s where a save editor comes in.
Disclaimer: Save editing breaks the intended progression. Always back up your original save first.
Step 1: In Mr. Mine, go to Settings → Save/Load → Export. Copy the giant block of text.
Step 2: Go to any online Base64 decoder (or a dedicated Mr. Mine save editor tool). Paste your save. You’ll see a JSON file. Error: Game resets to zero after import
Step 3: Find the variables. They change slightly between versions, but look for:
Step 4: Re-encode the edited JSON back to Base64. Copy the new string.
Step 5: Back in Mr. Mine, click Import, paste your new save, and reload.
Congratulations. You just became a mining tycoon in 60 seconds.
Two reasons: