Runaway Loop

Made for the GMTK game Jam 2025

A hex-based city builder about keeping Earth's cycle going.

(Better downloaded, web version is slightly slow)

Based on the research on planetary boundaries, for more information on it:
https://www.stockholmresilience.org/research/planetary-boundaries.html

How to Play

• Build buildings
• Try to lower the CO₂ emissions while keeping an eye on your land usage and water usage
• Your goal is to get all three planetary boundaries to the safe zone (green)
• You will lose if you hit the critical zone (red) for any planetary boundary

Controls

• Click
• Press space to pause and unpause the game
• Escape to go back to main menu

Credits

game-icons for energy and steel icons

Kenney for the click sound

Last Day Dreaming for the place building sound (edited to be faster)

Chhoff for the win and lose sound

Gregor Quendel for ambient sound

JDSherbert for background music and remaining sfx