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Flag Field Online

by crokocat · Puzzle

Flag Field is minesweeper on a little 3D lawn. Every grass block you dig pops up and away in a wave, numbers rise out of the sand to tell how many bombs are touching, and red pennants mark the spots you are sure of. Your first dig is always safe, and every field is dealt so it can be finished by logic alone — no coin-flip guesses at the end.

The rules are the classic ones. Some blocks hide bombs. Dig a safe block and it shows a number: how many of the eight blocks around it — diagonals included — hold a bomb. A zero opens its whole neighbourhood at once. Dig every safe block to clear the field; dig a bomb and the round is over.

Flag Field deals fair fields. The first block you dig and all eight around it are always clear, and before a field is handed to you a solver plays it using only the reasoning a person would use — one number at a time, and the overlap between two numbers. Only fields it finishes without guessing are kept, so there is always a next safe move somewhere if you look for it.

Levels is an endless ladder. It starts on a small six by seven lawn with five bombs and grows a step at a time to nine by thirteen, with the bombs getting denser as you climb. Every level is sized for a phone held upright. Clear a field quickly and you earn three stars; the par time grows with the field.

Flags are your notes. Plant one with a long press, a right click or the flag button; the counter at the top shows how many bombs are left unflagged. When a number already has all its bombs flagged, tap it to dig the rest of its neighbours in one go.

The lawn, the blocks, the flags and the bombs are drawn in 3D in the browser, so there is nothing to install, and the game plays the same with a mouse or a finger.

How to play Flag Field

Dig every safe block without touching a bomb:

Desktop: Left-click to dig, right-click to flag. Escape returns to the menu.
Mobile: Tap to dig, long-press to flag, or switch the round button under the field to the flag.

Game modes

ModeWhat changesWho it's for
LevelsAn endless ladder of fair fields: 6×7 with 5 bombs at level 1, growing to 9×13 by level 10, then slowly denser, capped so every field stays solvable by logic. Three stars for a fast clear; the level, stars and best are saved.Anyone who likes a logic puzzle that never ends on a guess.

Tips for Flag Field

Who made Flag Field?

Flag Field was built by crokocat game studio in 2026 — classic minesweeper rules on a 3D lawn drawn in the browser, a first dig that is always safe, fields dealt so they can be solved without guessing, and an endless ladder of growing fields.

Guides & tips

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About this game

Controls
Tap a grass block to dig it. Long-press it, right-click it, or switch the round button under the field to the flag to plant a flag. Tap a number whose bombs are all flagged to dig everything else around it. Back returns to the menu.
Supported devices
desktop, phone, tablet
Developer
crokocat
Genre
Puzzle
Release date
September 2026
Latest update
September 2026

Related categories

puzzleclassiclogicbrain3d

Frequently asked questions

Is Flag Field free to play?

Yes. Flag Field is free on crokocat with no download and no sign-up — it runs in your browser on desktop, phone and tablet.

Is Flag Field the same as Minesweeper?

It uses the classic minesweeper rules: numbers count the bombs around a spot and you clear every safe block. Flag Field adds fields that never need a guess, a 3D lawn and a level ladder.

Is the first move safe?

Always. The block you dig first and all eight blocks around it are guaranteed to be clear.

Will I ever have to guess?

No. Every field is checked by a solver that uses only human reasoning before you get it; fields it cannot finish without guessing are thrown away.

How do I place a flag on a phone?

Long-press the block, or switch the round button under the field from the shovel to the flag and tap.

How are stars given?

By time. Clear the field within its par time for three stars, within twice the par for two; any clear earns at least one.