Sand Block: Color Match Puzzle — a complete falling sand arcade puzzle for Android and iOS, ready to publish

Sand Block: Color Match Puzzle is a polished, complete mobile game built on a single Flutter codebase that ships to both Android and iOS. Blocks fall and dissolve into colored sand; connect the same color from one side to the other to clear it and beat each level. Buy it once, change a few values, build, and publish your own game to the Google Play Store and Apple App Store. There is no backend to host, no Firebase to configure, and no monthly services to pay for, plus a clear guide that walks you through every step.

It is built with Flutter and Dart on top of the Flame game engine, with fast on device storage via shared_preferences, so the code is clean, modern, and easy to work with for any Flutter developer.

Why developers choose Sand Block

• Launch fast. A finished, good looking game. Reskin and publish instead of building from zero.
• One codebase, two stores. The same Flutter project builds your Android app and your iPhone app.
• No backend, no Firebase, no paid SDKs. Everything runs on the device and works offline. Nothing to host and no surprise bills.
• Real game feel. A satisfying falling sand physics simulation powered by the Flame engine, with smooth 60fps gameplay.
• Easy to make your own. Change the name, icon, colors, level targets, power up costs and rewards by editing plain, clearly commented files.
• Documentation anyone can follow. A clear HTML guide takes someone with no coding experience from install to a signed store build.

Technology stack

• Flutter and Dart for a single Android and iOS codebase
• Flame game engine for the falling sand simulation and rendering

Gameplay

• Falling sand color match gameplay: tetromino style blocks fall and break into colored sand grains that pile up; match a color edge to edge across the board to clear it and score.
• 50 hand tuned levels across difficulty tiers, each with its own rising score target.
• Endless Challenge mode with its own separate high score for players who want to chase a leaderboard style run.
• Combos and scoring that reward clearing multiple colors at once.
• An interactive first time tutorial so new players learn the controls instantly.

Power ups and gems economy

• Four power ups — Skip, Clear, Bomb and Color Shift — to help players out of a tight spot.
• A built in gems currency: spend gems on power ups, or watch a reward ad to earn more.
• Daily Bonus streak that rewards players for coming back each day.
• Achievements with gem rewards, plus full stats tracking (rows cleared, games played, best combo, levels completed and more).

Polish and screens

• Complete set of screens: Splash, Menu, Levels, Gameplay, Game Over, Settings, Achievements and Contact, plus polished dialogs for Daily Bonus, Level Complete, Rate Us, Reward Gate and Exit Confirm.
• A striking neon dark theme with gradient accents and scanline effects.
• Native niceties: background music, sound effects, haptics, share, and an in app rating prompt.

Built for shipping

• Clean, readable Flutter source you fully own.
• Release signing wired up: drop in your own keystore, or it falls back to the debug key so test builds work instantly.
• An iOS Xcode project ready to archive.
• Passes flutter analyze with no errors.

What you can change in minutes

• App name and ID for Android and iOS.
• App icon for both platforms from one source image.
• Colors and theme in one file.
• Level targets and difficulty tiers in a simple config file.
• Power up costs, gem rewards, daily bonus and achievements in clearly commented config files.
• Contact email, privacy policy, terms and store links in one file.

What you get

• Full, commented Flutter source code for the complete game.
• Android and iOS projects ready to build.
• A ready to host web demo build of the app (inside a phone frame).
• A clear HTML documentation guide written for any skill level, covering setup, customization, signing keys, and publishing to both stores.

• Flutter SDK (latest stable)
• Android Studio (for Android builds)
• A Mac with Xcode (for iOS builds)
• Android 7.0+ (SDK 24+) and iOS 15+ on the device

Documentation and support

The included documentation explains everything in plain language: installing the tools, running the game, reskinning it, creating your Android signing key, and building the final files for Google Play and the App Store. If you need a hand, our support team is happy to help.

Stay updated

This is an actively maintained item. Every update is documented in the changelog, and updates are free for existing buyers.

If Sand Block helps you ship your game, please consider leaving a 5 star rating. It means a lot and helps us keep improving the product. Thank you for your support.