Idle Gem: Deep Mining RPG

Contains adsIn-app purchases
3.3
24 reviews
1K+
Downloads
Content rating
Everyone
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About this game

Idle Gem is a fresh idle mining game where every prestige run delivers a unique roguelite experience.
Over 30 updates and 25+ new contents added in the last 6 months. Idle Gem keeps evolving!

■ Idle Mining Game with Auto Progression!
Mining continues automatically even while you're AFK.
Collect gear and materials as you dig deeper. The deeper you go, the stronger the loot — feel the satisfaction of digging further than yesterday!

■ Merge & Upgrade Your Gear!
Fuse and enhance collected equipment to power up instantly.
Boost your mining speed and battle strength. Watch your progress grow in real time.

■ Intense Wave Battles!
Challenge yourself in wave-based RPG combat. How far can you push?
Your gear builds and upgrade choices determine victory. Beating your max wave record feels incredible!

■ Prestige & Endless Growth!
Use the prestige system to restart with carryover bonuses.
Each loop gets smoother and more efficient — a fresh roguelite adventure every time.

■ Frequent Content Updates!
30+ updates and 25+ new features in just 6 months.
Idle Gem is an ever-evolving idle clicker adventure.
Updated on
Dec 15, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

3.3
24 reviews
Isaac Ellingson
October 15, 2025
after tapping to start mining, a graphical glitch occurs where the entire screen flashes blue in an upsetting fashion. the game is unplayable
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Jaimie Mills
November 28, 2025
it's a bit slow but not a bad game
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Levi Long (ActNatura11)
November 21, 2025
way to greedy and pushy with the sale I would give 0 stars if possible
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What’s new

- Added a tutorial
- Improved the UI
- Upgrades are no longer reset when switching caves

App support

Phone number
+819063984744
About the developer
IDLE SYSTEM K.K.
idle.system.company@gmail.com
6-21, KOGANEMACHI GIFU STATION BLDG. 304 GIFU, 岐阜県 500-8842 Japan
+81 90-6398-4744

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