Deep Drill
Deep Drill is a passive mining experience that keeps moving on its own. The drill starts working the moment the page loads, with no home screen or waiting around. Your job is simple: cut into the earth for every metre and collect the ore that comes with it.
There are no timers, lives, or failure states in Deep Drill. The drill keeps working while you are reading the interface, and production continues even when the tab is closed. The single resource you earn is ore, and it is also the only thing you spend.
Ore comes from every metre the bit cuts. You spend it on twelve distinct rig tracks to improve the operation. These upgrades range from larger bits that increase cutting speed and wider hoppers that boost ore richness to night shift bonuses that reward you when you return later. There is no other currency.
To maximise output, invest ore across the different rig tracks based on your priority. Focus on cutting speed for steady growth, or upgrade ore richness if you want more payoff per metre. Remember that production is continuous, so progress accumulates even when you are not actively playing.