TerraMine

Income Machine

Enter your mines. See what you earn now — and what to build next.

How many mines do you have? tap a number to edit

Rock

Coal

Gold

Diamond

$0.00

per month · before boost

with ×20 boost → $0.00/mo

$0.00 / day · 0 mines

With & without the 20× boost

The same mines, two scenarios — boost off on the left, boost running non-stop on the right.

No boost

$0.00

per month

per day$0.00

per year$0.00

×20

With boost

$0.00

per month

per day$0.00

per year$0.00

What you'll really earn

The boost doesn't run 24/7. Set hours per day you keep it on — real income lands between the two figures above.

8 h

Effective multiplier: 7.33× across a full day

Realistic / month$0.00

Realistic / day$0.00

Where your money comes from

Share of monthly income by mine type.

Add mines to see the split.

Per-type breakdown

Mine	Count	/ day	/ mo	×20 / mo
Total	0	$0.00	$0.00	$0.00

Next mine is worth

$0.00

expected per new mine, per month · no boost

60% Rock · 30% Coal · 9% Gold · 1% Diamond

This is an average outcome, not a guarantee — one mine could land Rock, another could land Diamond.

Reach an income goal

$/mo no boost

Buy

more mines

Cost

TerraBucks

referrals

Enter a target above.

Spend TerraBucks you have

Buys

mines

Adds/mo

expected · no boost

Adds/day

expected · no boost

Your luck

Your income vs. an average player with the same number of mines.

—

Add mines to measure your luck.

Assumptions — Income

Level 1 rates: Rock $0.002851, Coal $0.004147, Gold $0.005702, Diamond $0.011405 per mine per month, before boost. In plain terms: 1,000 Rock mines ≈ $2.85/mo, 1,000 Diamond mines ≈ $11.41/mo.
Monthly income = each mine's rate × how many you own, added together.
Daily uses a 30.44-day average month; yearly is monthly × 12.
The ×20 figure is a theoretical maximum if the boost ran every minute of the month — not sustainable in normal play.
"What you'll really earn" blends the two: boosted hours run at 20×, the rest at 1×. So 8 boosted hours a day averages 7.33× over a full day, not 20×.
Mine levels above 1, check-in bonuses, and other in-game modifiers aren't included.

Each type's share = that type's monthly income ÷ your total monthly income. It's a share of money, not of mine count.
That's why a few Diamonds can outweigh many Rocks — a Diamond earns 4× what a Rock does, so it takes up more of the bar than its count suggests.
The table's ×20 column applies the full boost to each type, same theoretical-maximum caveat as the Income tab.
Daily figures use a 30.44-day average month.

Mine type is random when you place, so a new mine is worth its expected value: each rate weighted by its placement odds (60% Rock, 30% Coal, 9% Gold, 1% Diamond).
That works out to about $0.0036 per mine per month before boost. It's an average across many placements — any single mine could roll Diamond or Rock.
Mines needed for a goal = what's left to reach it ÷ that expected value, rounded up. Real results will vary run to run.
Cost assumes 100 TB per mine.
Referrals: a 1,000 TB referral bonus buys 10 mines, so mines ÷ 10 = referrals.
The toggle switches every figure here between no-boost and a constant 20× boost. Constant 20× isn't realistic — see the Income tab's realistic estimate.

Your luck score compares your actual monthly income to what an average player with the same number of mines would earn (mine count × $0.0036).
Above +3% reads as lucky, below −3% as unlucky, anything between as average — small gaps are normal noise, not skill.
Expected counts are your total mines × each type's odds, rounded to whole mines.
With few mines these numbers swing wildly — 20 mines "expects" 0 Diamonds, so rolling one looks like huge luck. The comparison only settles down over hundreds of mines.
Luck is measured on placement rolls only. It doesn't account for mine levels or boosts.

made by @LegendSquare