Understone: Gemstone Mines app icon

Understone: Gemstone Mines

Minesweeper where each number sums nearby mining costs

iPhoneiPadFree to start

The verdict

Classic Minesweeper tells you how many mines touch a square, while Understone shows the total mining cost of the 8 tiles around it, so every dig is weighed against your stamina. You collect gems for experience, eat food to recover and trade finds at camp for supplies or gear, and later districts add lethal mines. The first 3 floors and camp are free, and $9.99 once opens the rest of the 24 floors.

Get it if

You have played Minesweeper for years and want a version that makes you do sums.

Skip it if

You want plain Minesweeper with no stamina, upgrades or shop to manage.

Screenshots 3

What it helps you do

  • Solve grid puzzles with weighted number clues
  • Plan each dig around a stamina budget
  • Collect facts on 29 mineral specimens
  • Try 3 floors free before you pay

Plans and prices

  • Free

    Free

    The opening district's 3 floors and first camp

  • Full Expedition

    $9.99once

    For every remaining field site, with no subscription

What changed

  1. Version 1.0.2

    Refined the mineral filters in Field Review with consistent button sizes and a clearer All icon. Camp now shows only current purchase prices. Added Back navigation to the unlock screen so you can return to camp with your progress and purchases intact.

  2. Added to The Useful Apps

Pick something else if

All 8 Understone: Gemstone Mines alternatives

The details

Runs on
iPhone, iPad
Requires
iOS 17.0 or later
Version
1.0.2
Size
35 MB
Made by
Joey Zhou
Controllers
Touch only
Offline play
Needs a connection
Multiplayer
Single player
For kids
Older players
Privacy
Collects no data, per its App Store label
No account
Works without signing up

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