Which Terramine mine should I upgrade first?

Rock mines are the cheapest and safest early upgrades. Once base income is stable, prioritize Coal and Gold for their higher multipliers.

How do epic level upgrades work in Terramine?

Epic levels apply after standard upgrade caps and scale costs sharply. Use the calculator to see the exact TB needed for each epic level.

How much does the Rent Rewards boost multiply rent?

The Rent Rewards boost applies a flat multiplier on top of your total rent, so higher-level mines gain more absolute income from the boost.

Beginner's Guide

Getting started with Terramine

Terramine is a location-based game where you buy mines and interact with other players' mines. You spend Terrabucks (TB) to buy mines — you start with 1,000 TB free, plus another 1,000 TB after your first purchase if you used a referral code.

Mine types

Every mine you buy is randomly assigned a type. Individual luck varies, but the more mines you own, the closer you'll get to the average distribution.

Mine	Odds	Earnings vs rock
Rock	60%	1×
Coal	30%	1.5×
Gold	9%	2×
Diamond	1%	4×

Each mine has 3 things you can do

Daily activity (conveyor belt, coal pile, sluice box, slot machine) — click for free materials and occasional TB. Skippable early on; mostly useful to keep a mine active.
Minigame — the best way to progress. Gives TB and upgrade materials.
Upgrades office — level up the mine to boost earnings.

Minigames

Rock mine

Memory game

Flip cards to make matches. 1 TB per level. Slowest to grind.

Coal mine

Miner maze

Guide the miner to the bottom-right exit. 5 TB easy, 15 TB medium (LVL 11+), 30 TB hard (LVL 31+). Ladders only move up/down. First click turns the miner, second click moves.

Gold mine

Gold rush

Rotate tiles to build a path to the pot of gold. 1–2 TB per level. Working backwards from the pot can help.

Diamond mine

Laser blast

Rotate mirrors to hit the targets. 1–2 TB per level. Higher levels have multiple lasers — match by color.

Tip 1: Minigame level is unique per mine — start a fresh mine to grind the easier lower levels instead of the hard high ones.
Tip 2: Higher minigame levels drop more materials (and rarer ones), even when the TB payout is the same.

Upgrades office

Each mine level adds +1% to that mine's earnings. Costs scale up rapidly while the benefit stays flat, so:

Level up your lowest-level mines first — LVL 1→LVL 2 gives the same +1% as LVL 9→LVL 10, for a fraction of the cost.
Prioritize rarer mine types (Diamond → Gold → Coal → Rock) since 1% of a bigger rent is worth more.

Upgrade cost curve

Epic-tier material needed per level. Costs double each level (confirmed through LVL 17, assumed beyond).

Level	Epic material	Cumulative
LVL 1	1	1
LVL 2	2	3
LVL 3	4	7
LVL 4	8	15
LVL 5	16	31
LVL 6	32	63
LVL 7	64	127
LVL 8	128	255
LVL 9	256	511
LVL 10	512	1,023
LVL 11	1,024	2,047
LVL 12	2,048	4,095
LVL 13	4,096	8,191
LVL 14	8,192	16,383
LVL 15	16,384	32,767
LVL 16	32,768	65,535
LVL 17	65,536	131,071
LVL 18	131,072	262,143
LVL 19	262,144	524,287
LVL 20	524,288	1,048,575

Where do rare materials come from?

Marble, diamond coal, gold ingot and flawless diamond are rare drops from the daily activity, but consistently appear starting at these minigame levels:

Material	Mine	Starts at
Marble	Rock	Minigame LVL 10+
Diamond coal	Coal	Minigame LVL 5+
Gold ingot	Gold	Minigame LVL 3+
Flawless diamond	Diamond	Minigame LVL 2+

Check-ins

If you live near another player you can check in at their mine for some TB. Turn on your boost first.

Regular check-in: 6 TB
With text or picture: 10 TB
With text and picture: 14 TB
The mine owner gets 1 TB per check-in.

Daily streak bonuses:

3rd check-in: +10 TB
5th check-in: +25 TB
10th check-in: +50 TB

Tip: Pair up with a friend or family member and place mines at each other's home base for easy daily TB. Use the player heatmap to find active areas.

What should I focus on?

Early game: Grind TB and buy mines. Ignore the daily activity and upgrade office. Your buy/check-in radius is a 5×5 grid centered on you, so it fills fast.
When your area is full: Move around to place mines elsewhere, or start upgrading — Diamond → Gold → Coal → Rock.

Finding & managing your mines

Open your profile → Properties to sort your mines by name, type, inactivity, mine level or game level. From your Portfolio, tap a mine type to filter the properties list to just that type — great for hunting down low-level mines to upgrade.

Mine activity requirements

Mines need activity every 6 months to keep earning. After 12 months of no activity they get deleted. Activity = receiving a check-in, doing the daily activity, or playing the minigame. Sort your properties by inactivity to find at-risk mines (flagged at 5 months).

Place mines in high-traffic areas so other players' check-ins keep them alive with no work from you.

Earnings per level-1 mine

Monthly rent for a fresh LVL 1 mine, unboosted and with the ×20 Rent Rewards boost:

Mine	Base / month	Boosted / month
Rock	$0.002851	$0.05702
Coal	$0.004147	$0.08294
Gold	$0.00507	$0.1014
Diamond	$0.011405	$0.2281

Milestones

Average number of LVL 1 mines needed to hit each income threshold, assuming full-time boost. Actual numbers vary with mine-type luck and upgrade levels.

Goal	Mines needed
$10 / month	142
$1 / day	432
$50 / month	710
$100 / month	1,419
$5 / day	2,159
$250 / month	3,546
$10 / day	4,318
$1,000 / month	14,185