Reef Defenders

How to play

• Pick a level from the menu to play. (Probably start at level 1?)
• Find the friendly sea creatures hanging about (some eels and rainbow fish, depending on the level).
  • Drag them onto or between the open shells to have them start defending.
  • Hover the mouse over them and scroll the mouse wheel to rotate them and control where they shoot their bubbles.
• Press the Start button at the top-right, then observe.
• Press the Reset button at the top-right and tweak your strategy as needed.

About

A storm is brewing under the ocean’s surface. A swarm of destructive sea urchins are closing in on your reef, threatening to turn your vibrant home into a wasteland. If the coral is bleached, the delicate balance of marine life will collapse, and the fish that rely on the coral shelves will perish.

As a strategic reef guardian, it’s up to you to rally your reef defender fish and place them at key points to maximize their angles of defence. Adapt your tactics to each new wave of urchins and deploy your fish wisely to protect every inch of the coral shelves.

Do you have what it takes to embark on this vital mission and protect your underwater sanctuary, or will the urchins breach your defences? Dive in and defend the reef in this thrilling underwater strategy game!

Credits

This was a Global Game Jam 2025 submission.

Team:

• Andres Felipe Gonzalez: gameplay programming; shader wizard.
  
• Bilal Akil: generalist programming; game design; project management.
• Chris Drew: 3D art and animation.
• David Handler: generalist programming; audio.
• Rhys McLachlan: 3D art and animation.

Resources:

• Thanks Unity!
• Thanks to the many royalty free music and sound artists that helped us. Sources here.