Project Overview

Retro Tetris Game is a browser-based block-puzzle game developed using HTML, CSS, and JavaScript. The game features falling tetromino blocks that the player must arrange to complete full horizontal lines. When a line is completed, it gets removed, and the player earns points. The game becomes progressively faster and more challenging as the level increases. The UI is inspired by classic retro arcade themes.

Screenshots

Key Features

1. Classic Tetris gameplay with all standard tetromino shapes.
2. Real-time falling blocks with smooth movement and rotation.
3. Line-clear system that increases score and level.
4. Next-piece preview to help with planning moves.
5. Ghost piece indicator showing where the block will land.
6. Start, pause, and restart controls.
7. Responsive layout with both keyboard and mobile button controls.
8. Game over detection when a new piece cannot spawn.
9. Retro-styled user interface for a classic arcade feel.

Functionality

1. Initializes a 20×10 game grid when the game starts.
2. Spawns random tetromino pieces at the top of the board.
3. Allows the player to move blocks left, right, rotate, soft drop, and hard drop.
4. Automatically moves the block down at a fixed interval that speeds up as the level increases.
5. Detects collision with walls, existing blocks, and the bottom of the grid.
6. Locks a block into the board when it can no longer move.
7. Scans the grid, clears completed lines, and updates score and level.
8. Displays the next upcoming piece and ghost landing position.
9. Shows a game over modal if a new block cannot be placed.
10. Provides full control via keyboard and on-screen buttons.

Technology Used

1. HTML5 for game structure
2. CSS3 for styling and layout
3. JavaScript (ES6) for all game mechanics and logic
4. Bootstrap 5 for layout structure and modals
5. Google Fonts for retro-style typography

Why This Project Is Useful

This project demonstrates the core concepts of game development using only web technologies. It improves understanding of grid-based logic, collision detection, state management, event handling, and animation timing. It also helps beginners strengthen their JavaScript skills in a practical, interactive way. The project is suitable for academic submissions, portfolios, and learning real-time application logic.

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Project Setup Instructions

Note: This project is for educational purposes only. Not for commercial sale.