gravify

Gravify

Gravify is a minimalist, block-merging puzzle game built around the psychological principles behind classic gameplay. Inspired by timeless classics like Tetris and Snake, Gravify challenges your attention, reflexes, and pattern recognition — not with cinematic cutscenes, but with pure gameplay satisfaction.

🔥 Play It Now

👉 Try Gravify Online

🎮 How to Play

• Use ⬅️ ➡️ ⬇️ arrow keys (or on-screen controls) to move falling number blocks.
• Merge blocks of the same value to create higher numbers.
• The merged value replaces one block; others are cleared.
• Score points and level up as you merge and survive.
• Each level increases difficulty and slightly speeds up the game.

Red blocks are even, blue blocks are odd. Visual contrast helps cognitive load balancing.

📷 Screenshots

Gameplay

🧠 Project Philosophy

Gravify is part of a broader project exploring psychological principles behind classic games.

“While AAA games compete with Hollywood, classics like Tetris and Snake remain undefeated — not by graphics, but by gameplay.” Because great gameplay never needed RTX

In a time of cinematic excess and billion-dollar budgets (e.g. GTA 6, Star Citizen), Gravify returns to the essence of fun: simple mechanics that are easy to learn, hard to master, and infinitely replayable.

This game is:

• Minimalist: Built in pure HTML5/JavaScript with no dependencies.
• Tactile: Sound and color feedback reinforce key gameplay events.
• Accessible: Responsive layout for mobile and desktop play.

🧩 Features

• Progressive difficulty via levels and speed scaling
• Local high score tracking (via localStorage)
• Built-in sound effects and music
• Responsive controls for mobile and desktop
• Simple canvas-based rendering for maximum compatibility

🛠️ Code Overview

The game is a single-file HTML+JS implementation (gravify.html):

• canvas: Rendering grid and game blocks
• grid[][]: Stores current block values
• createNewPiece(): Generates new falling number
• mergeRecursive(): Handles merging logic
• applyGravity(): Makes blocks fall after merge
• tick(): Main game loop

🧠 Inspiration

This project reflects on why simple games stay timeless. It is an invitation to developers and designers to:

• Strip down to core mechanics
• Leverage visual cognition and reward loops
• Create games that feel good, not just look good

🚀 Future Ideas

• Online leaderboard integration
• New block types (e.g. “wildcard” blocks)
• Accessibility tweaks (e.g. high-contrast mode)
• AI-based player analysis (tie-in with psychology research)

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Enjoy Gravify — where every merge counts, and gameplay is king.

🧠🎮🧩

📝 License

This project is offered under a dual-license model:

⚖️ Non-Commercial / Open-Source Use (GPL-Style)

You are free to use, modify, and distribute this project for non-commercial purposes under terms similar to the GNU General Public License (GPL). This includes:

• Personal use
• Educational use
• Academic research
• Non-profit projects
• Open-source forks (as long as they remain non-commercial)

If you distribute modified versions, you must:

• Include attribution to the original project
• Share your changes under the same license terms

💼 Commercial Use

To use this project or its derivatives in a commercial context (e.g., for-profit apps, games, platforms, or services), a separate commercial license is required.

Please contact the author at [serg.gordey@gmail.com] to discuss commercial licensing options.

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TL;DR: Free to use and remix for non-commercial/open-source use. Contact for anything commercial.

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