An open-source, ad-free block puzzle game (Block Blast style). Free forever, on Android and iOS. Part of the Free Ad-free Games project: zero extraction — no ads, no in-app purchases, no analytics, no dark patterns. Ever.
Drag pieces from the tray onto the 8×8 board. Fill a row or a column to clear it. Chain clears for combos; empty the whole board for a big bonus.
- Classic — endless, chase your all-time high score.
- Quest — level map of hand-authored stages: reach a score or collect the gems, each starting from a crafted board layout. New quest packs go live straight from this repo, no app update needed.
| Menu | Opening break | All clear! | Treasure hunt | Gem stage |
|---|---|---|---|---|
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Everything is structured to be AI-assist friendly and reviewable:
| Where | What |
|---|---|
lib/models/, lib/systems/ |
Pure Dart game core — fully unit-tested, deterministic from a seed |
lib/game/ |
Flame rendering layer (board, drag & drop, effects) |
lib/state/ |
Riverpod state (settings, saves, quest progress) |
lib/services/ |
Persistence, quest fetch/cache, audio |
lib/ui/ |
Screens (one widget per file) |
content/quests/ |
Quest packs — data-only contributions welcome! |
Start with ARCHITECTURE.md. Author quest levels with zero programming: CONTRIBUTING_QUESTS.md. Code contributions: CONTRIBUTING.md. Progress and decision history: PROGRESS.md.
flutter pub get
flutter test # 60+ tests, all pure-logic rules covered
flutter runDev tools:
dart run tool/simulate.dart <seed> [moves]— headless deterministic replay (add--stage pack.json:idfor quest stages).dart run tool/validate_quests.dart— validate quest content.python3 tool/generate_audio.py— regenerate all sound effects.
The app fetches quest packs from this repository
(raw.githubusercontent.com) — that is its only network access.
Fully playable offline.
Code: MIT. Assets (including the synthesized audio): CC BY.