Kizgame
Heart Box

Heart Box

Rating:
10.0
(1 votes)
Played:
13 times
Developer:
RAD BROTHERS
Released:
December 2025
Technology:
HTML5 (Unity WebGL)
Platform:
Browser (desktop, mobile, tablet)
Classification:

Heart Box is a charming and inventive physics puzzle game that invites players to dive into a world of gravity, logic, and electricity. Developed by RAD BROTHERS, this engaging title puts you in control of Robby, a lovable robot with a constantly draining battery who must navigate the treacherous laboratory of Professor Rat. Your mission is simple yet challenging: interact with the environment to guide Robby to his charging station before he powers down completely.

This browser-based logic adventure offers more than just simple puzzles; it features realistic physics mechanics where players must manipulate boxes, platforms, and explosions to succeed. With over 180 distinct levels, the game scales in difficulty, ensuring a stimulating experience for both casual players and puzzle veterans. Whether you are on a desktop or a mobile device, you can play directly in your browser without any downloads. Beyond the core campaign, unleash your creativity with the integrated Level Editor, or challenge yourself with thousands of community-created stages.

Explore more Logic Games here

Power up Robby and start your electric adventure today!

The Science of Fun: Gameplay & Mechanics

Heart Box is defined by its intuitive yet deep physics-based gameplay. Unlike standard platformers, you don't control the character directly; instead, you manipulate the world around him. You must click to destroy ice blocks, trigger explosions, or activate conveyor belts to push Robby toward the charger. The game requires a keen understanding of trajectory and momentum. As you progress, new elements like lasers, bowling balls, and trampolines are introduced, transforming each room into a unique brain teaser.

  • Tip: Look for the "Heart Box" skins to customize your robot as you unlock achievements.
  • External Resource: Learn more about the principles of Game Physics Engines to understand how gravity works in digital spaces.

Create & Share: The Level Editor

One of the standout features of Heart Box is its robust Level Editor. If you have mastered Professor Rat's 180+ experiments, it is time to become the scientist yourself. This feature allows players to design their own intricate puzzles using the same assets found in the main campaign. You can adjust gravity, place hazards, and set victory conditions. Once your masterpiece is complete, upload it to the "Community Levels" database.

  • Access over 10,000 player-created levels.
  • Scan QR Levels to instantly load puzzles from friends.

Modes & Challenges

The game keeps the experience fresh with 4 fun game modes that twist the standard formula. While the classic mode focuses on reaching the charger, other modes might challenge you to keep Robby in the air or survive against the clock. Completing these challenges earns you achievements and spots on the global leaderboards. Competing for the top score adds a layer of replayability that keeps players coming back for "just one more try."

Hidden Secrets & Skins

For the completionist, Heart Box is packed with unlockables. Throughout the laboratory, you will find opportunities to collect coins and batteries. These resources can be exchanged for various skins for the robot, allowing you to turn Robby into a multitude of fun characters. Keep an eye out for hidden cartoons and easter eggs that reveal more about the lore between the grumpy Professor Rat and his mechanical creation.

Whether you are looking for a relaxing free browser puzzle or a complex robot logic game, Heart Box delivers on all fronts. The game seamlessly blends gravity mechanics with accessible controls, making it a top choice for fans of HTML5 physics games. By offering a massive library of community levels and a versatile level editor, the developers have ensured endless hours of gameplay. Jump into this online puzzle adventure and help Robby escape the lab!

Can you outsmart Professor Rat? Play Heart Box now and prove your logic skills!

Controls

On a computer, use the left mouse button to pop, destroy, or move objects. On mobile devices, simply use your finger to interact with the game elements. These intuitive controls allow you to navigate through levels effortlessly, making it easy to focus on solving puzzles.

FAQ

How do I use the Level Editor in Heart Box?

To use the Level Editor, navigate to the main menu and select the "Editor" icon. From there, you can drag and drop objects, set physics parameters, and test your creation before uploading it to the Community Levels database.

Is Heart Box free to play online?

Yes, Heart Box is completely free to play directly in your web browser on both desktop and mobile devices. No download is required.

What are QR Levels in the game?

QR Levels are custom puzzles created by other players. You can scan a generated QR code with your device (or import it in the game) to instantly play a specific level shared by a friend or the community.

Can I play Heart Box on my tablet?

Absolutely! Heart Box is built with HTML5 technology, making it fully responsive and optimized for touch controls on iPads, Android tablets, and smartphones.

×

Report Game