Idle Deepcore tasks you with expanding an underground mining operation by digging deeper, smelting ore, and upgrading pickaxes and automated machines across multiple mines. The game features a prestige system and land expansion mechanics that unlock new resource types, though progression can feel slow without understanding which mines and upgrades to prioritize. It appeals to players who enjoy methodical incremental games with multiple upgrade paths and offline gains, though those seeking faster pacing may find the late game grinding repetitive.
About this game
Idle Deepcore is an incremental mining game where you dig ever deeper, smelt ore into ingots, upgrade your pickaxe and machines, and grow several mines in parallel to build a vast underground industry.
What players are saying
▼ Not recommended1 hrs
Progression is very slow and can be heavily impeded by not buying/expanding to the proper land (which isn't ever explicitly explained), but even once you have opened all the necessary mines to get the full spread of the resources, progress is still very slow and eventually gets to a monotonous crawl where you're slowly buying upgrades and land while occasionally unlocking a skill. Didn't get to the full end game since it was just more of all the same, but can't really recommend it with the bland progression there is now.
Pretty fun idler/clicker game. I liked the prestige option, and the ability to add mines, and machines. Fun game and definitely worth the price when compared to other clicker/incremental games.
Update 1.5.3Version 1.5.3: two fixes straight from your reports.BUG FIXESThe Full Fleet achievement now unlocks even when your relic bonuses make rockets travel instantly: every pad that launched within the last few seconds counts as part of the fleet.Automation "Machine Count" conditions now count your machines across all mines, matching what the shop shows. They used to count only the active mine, so routines like "buy until 50 jackhammers" never stopped.OPTIONSNew Preferences toggles to turn off the rocket arrival, research complete and depth point notifications individually.Thanks for the reports!
Update 1.5.2Bug FixesFixed a bug where one relic could become impossible to find for the rest of the run, blocking the whole collection no matter how long you played. Affected saves are repaired automatically the next time you load them.Thanks for the reports!
Update 1.5.1RelicsWhen several relic discoveries pile up (for example after leaving the game idle), the popup now has a button to skip the rest in one click. You can also turn relic discovery popups off entirely in Preferences: the relic is still collected, just silently.The relics screen now updates live when you collect a relic while it is open.Newly found relics are flagged with a glow and a NEW tag until you have looked at them.AutomationNew condition "Asteroid available" (any, asteroid, comet or uranium), so routines only launch when there is a target to send a rocket to.New relic conditions "Relics held" and "Relic sets completed".Bug FixesThe Fission Furnace now appears as soon as you research it.Fixed a Mastery lock that could leave your last point unspendable.Rocket automation now fills every free launch pad each cycle.Fixed a tutorial hint that could stay stuck on the Sharp Blade upgrade.Feedback welcome!
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