Hi team, after spending quite a bit of time on the game and analyzing the current mechanics, I’d like to submit a few structured improvement ideas to enhance the gameplay experience.

1. Automation Optimization (Late-game)
 - Multi-stream Refining: 
Currently, processing only one type of ore at a time creates a major bottleneck, especially when comparing refining time to drilling speed. I suggest adding an upgrade (unlockable at level 5 or 8) that allows processing two types of blocks in parallel.

 - Auto-Drill Autonomy: 
The current 50-unit coal limit is quite restrictive, offering only about ten minutes of autonomy with a x9 speed multiplier. It would be interesting to add upgrade tiers to increase storage to 100, 150, or even 200 units to better support passive play sessions.


2. Quality of Life (QoL)
 - Inventory Locking: 
It’s very easy to accidentally sell your coal stock using the "Sell All" button. Adding a small "lock" icon to secure specific blocks (like coal) during sales would be a significant improvement for resource management.

 - Mining Reach Extension: 
Introducing a module to increase the block-breaking distance would make chest hunting and ore harvesting much more efficient and fluid.

 - Active Waiting Area: 
To fill the downtime during refining, adding a parkour zone (e.g., jumping from block to block as high as possible) with a small reward at the top would provide a fun secondary objective.


3. Economic System & Casino Evolution
 - ATM Overhaul: 
I propose making the ATM functional with two distinct compartments:

 - Active Account: 
To isolate a portion of your fortune and avoid misclicks or accidental "all-in" bets.

 - Passive Account (Post-Prestige): 
Allowing players to keep a small percentage (5 to 10%) of the price of the most expensive tool after a Prestige. This would slightly speed up the restart without breaking the challenge of the reset.

 - Game Diversification: 
The current slot machines are very volatile. Adding a classic Roulette (Red/Black x2, Green x10) with a 15-number draw (0-7 for Red, 7-14 for Black, 15 for Green) would offer a more stable alternative for players who prefer managing their risks.


Note: This message was translated into English from French. I apologize if some phrasing is not perfectly correct.