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A mysterious box is locked with a 4 to 8-digit code.Your only goal is to open it—with your own hands. No hints. No puzzles.But who needs them? If you try every number up to 9999... eventually, it will open.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Social Deduction Fest ends
Official stores with direct support.
It's simple:
A mysterious box is locked with a 4 to 8-digit code.
Your only goal is to open it—with your own hands.
No hints. No puzzles.
But who needs them? If you try every number up to 9999...
eventually, it will open.
This is a game about perseverance, pattern, and reward.
Can you crack the code?
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Click the ▲ and ▼ buttons to change digits.
Use arrow keys (←/→ to move, ↑/↓ to change digits).
Press Space or Enter, or click the treasure chest to submit your guess.
If the input matches the code, the chest opens.
Game cleared—and you earn generous rewards!
Though there are no hints, coins and gems will occasionally fall during gameplay.
These can be spent on optional skills to boost your efficiency just a little.
Skills are purchased via the title screen
They remain active until manually disabled
Using them is optional—you can still clear the game without them!
Choose between 4 to 8-digit code lengths
Each digit length has its own save slot
You can freely switch between difficulties
Only one save file per digit length is allowed
The longer the code, the greater the reward.
Clearing without using any skills also boosts your final reward.
In Serious Mode, all skills are disabled.
But in return, the rewards skyrocket.
This mode is designed for players who want maximum challenge and maximum payout.
Clearing this mode also counts as completing Normal Mode for Steam achievements.
A short, basic tutorial is included.
Features a 3-digit version of the game
Perfect for learning controls and game flow
Takes just a few minutes to complete
