Mine rocks, collect rare gems, upgrade your miner and master idle faceting.
Enter the mine, break rock deposits and discover valuable minerals, rough gemstones and exceptional specimens.
Start by striking rocks manually, then improve your damage and mining speed, unlock Auto Mine and advance through increasingly rewarding Rock Tiers. Sell ordinary materials for Gold or protect your best discoveries inside the Rough Vault.
Build your gemstone collection with specimens that vary in species, weight, clarity, colour and rarity. A familiar mineral can still become an extraordinary find.
Prestige to strengthen your current Ascension cycle and unlock permanent progression bonuses. Reach Ascension I to begin your career as an Apprentice Cutter and gain access to gemstone faceting.
Choose a protected rough gemstone, select a suitable cut and place it in the faceting machine. Faceting continues over real time, including while the game is closed. Return later to reveal the finished gem, its cut quality, weight and value.
Gem Forge Idle includes:
• Manual mining and unlockable Auto Mine
• Damage, speed and Rock Tier progression
• Bulk minerals and individually generated rough specimens
• Collection records and protected Rough Vault storage
• Daily and weekly quests
• Prestige upgrades and offline mining progression
• Ascension I and the Apprentice Cutter career
• Idle gemstone faceting with multiple cut shapes
• Finished faceted-gem collection
• Optional rewarded bonuses and a one-time Remove Ads purchase
Mine, collect, improve and turn remarkable rough stones into finished gems.
What's new
New career levels and progression through five Ascensions.
Collect bonus crystals and upgrade their effects.
New diamond rewards and guidance for specimen inventories.
Rebalanced mining upgrades and daily/weekly quests.
Improved Google Play update flow