Before music update, this was the music that plays when you're in Any of the First 9 Impossible Island Mines.
The Impossible Island offers great challenges to the whole Idle Miner World.
If you complete its extreme mines objectives , you will win exclusive rewards like avatars, decorations and Medals (Legendary Super Managers).
You need 250ac Fire Cash to unlock the Impossible Island.
To unlock the mines, you will first need to forge Keys by going to the Key Forge.
Impossible Island Mines
The Impossible Island has 10 different mines:
- Dark Shores
- Dangerous Shores
- Impossible Shores
- Dark Passage
- Dangerous Passage
- Impossible Passage
- Dark Gateway
- Dangerous Gateway
- Impossible Gateway
- Impossible Tower [MegaMine Corp.]
All 10 mines have a unique and different design.
The costs to unlock and replay the mines are:
| Difficulty Description | Unlock Cost | Replay Cost | |||||
|---|---|---|---|---|---|---|---|
| Bronze | Silver | Gold | Bronze | Silver | Gold | ||
| Dark Shores | Extreme (2/5) | 5 | - | - | 1 | 0 | 0 |
| Dangerous Shores | Extreme (2/5) | 15 | - | - | 3 | 0 | 0 |
| Impossible Shores | Extreme (2/5) | 20 | - | - | 4 | 0 | 0 |
| Dark Passage | Unfair (3/5) | 25 | 5 | - | 5 | 1 | 0 |
| Dangerous Passage | Unfair (3/5) | 30 | 10 | - | 6 | 2 | 0 |
| Impossible Passage | Unfair (3/5) | 35 | 15 | - | 7 | 3 | 0 |
| Dark Gateway | Insane (4/5) | 45 | 25 | 5 | 9 | 5 | 1 |
| Dangerous Gateway | Insane (4/5) | 50 | 30 | 10 | 10 | 6 | 2 |
| Impossible Gateway | Insane (4/5) | 55 | 35 | 15 | 11 | 7 | 3 |
| Impossible Tower | Not Playable | - | - | - | - | - | - |
Key Forge
The Key Forge belongs to the Impossible Island. Here, you can forge Keys that are used to open Impossible Mines. Forging a Bronze Key (the first key you can forge) takes 5 days of real-time or you can melt Boosts to reduce the forging time. When a Boost is melted, it cannot be used again.
Types of Keys & Forging Times
- Bronze Key: 5 days
- Silver Key: 10 days
- Gold Key: 15 days
Melt Boosts to forge Keys faster!
| Bronze Key | Silver Key | Gold Key | |
|---|---|---|---|
| Boost Tokens | Reduce Forging Time | ||
| 2x – 1h |
-10m | ||
| 2x – 4h |
-25m | ||
| 2x – 8h |
-40m | ||
| 2x – 12h |
-50m | ||
| 4x – 7d |
-16h | ||
| 4x – 14d |
-1d 12h | ||
| 5x – 5m |
-10m | ||
| 5x – 1h |
-1h 30m | ||
| 5x – 4h |
-3h | ||
| 10x – 5m |
-30m | ||
| 10x – 10m |
-1h | ||
| 10x – 1h |
-3h 30m | ||
| 10x – 4h |
-7h | ||
| 10x – 12h |
-16h | ||
| 20x – 5m |
-1h 30m | ||
| 20x – 10m |
-2h 15m | ||
| 20x – 1h |
-9h | ||
| 20x – 4h |
-20h | ||
| 50x – 5m |
-4h | ||
| 50x – 10m |
-6h | ||
| 50x – 1h |
-1d | ||
| 100x – 5m |
-10h | ||
| 100x – 1h |
-2d | ||
| 500x – 5m |
-2d | ||
| 1000x – 5m |
-3d | ||
| 2000x – 5m |
-7d | ||
| 3000x - 5m |
-10d 10h | ||
| 4000x - 5m | -13d 21h 20m | ||
| 5000x - 5m | -17d 8h 40m | ||