Mine Empire: Idle Tycoon is a free idle/incremental mining game for Android.

You start with a single coal mine in Silesia, Poland, and expand across the world through three eras — from copper, silver and gold all the way to the rarest gems on Earth like painite and grandidierite (15 mines total).

Core loop

• Each mine runs a 3-layer pipeline (extraction → transport → processing). Upgrade layers and clear bottlenecks to maximize output.
• Prestige individual mines to earn Quantum Cores and unlock permanent upgrades (plus a respec option that never costs premium currency).
• Recruit 100+ collectible miners (common → legendary, with pity system) and assign them to layers; their active skills boost production and prestige fuel.

Meta & retention

• Seasonal global leaderboard with country flags and rank-based avatar rewards
• 30-day login calendar, streaks, daily missions, milestones
• Black market with rotating per-mine deals
• Offline earnings (up to 6 h with premium), cloud save, 10 languages

Fair monetization

• No forced ads. Every ad is opt-in and rewarded (offline bonus, boosts, streak repair).
• No pay-to-win: achievement avatars and their perks can't be bought.

Transparency note: solo-dev project; art is AI-generated and code was written with AI assistance — design, economy and balancing are human-made.

▶ Play free: https://play.google.com/store/apps/details?id=com.golawski.mineempire