This game was created for NomaHacks 2019 as a 24-hour challenge. It follows the Energy track that aims to promote environmentally friendly and ecologically beneficial power.

What it does

You play as a hydroelectric buoy, collecting water to turn into energy and avoiding debris that will break down your systems. You progress through the levels by amassing enough energy, and the difficulty increases as you go.

How we built it

We built this game using GameMaker Studio 1.4 ( The art was created in MediBang Paint Pro (, and the music was created using BeepBox ( and edited with Audacity ( Hydropower facts were gathered from the Office of Energy Efficiency and Renewable Energy (

Challenges we ran into

There were several challenges, especially the time constraint. Creating random spawns of the water and debris at specific intervals presented a challenge, as well as displaying the animations at the correct speed and duration. Displaying and linking all the different rooms was complicated, too!

Accomplishments that we're proud of

We collaborated effectively to create a polished product under the deadline, and created all our own art and sound assets! We also included facts so others can learn about hydropower.

What we learned

We learned about 2D game development and design, as well as information about hydroelectricity. We want to promote sustainability, conservation, and restoration of the environment and our water supply.

What's next for H20-No

There are many directions we can travel with this game, such as adding upgrades for the buoy and additional levels. We hope you enjoy our demo!

Built With

  • audacity
  • beepbox
  • gamemaker-studio
  • medibang-paint-pro
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