M87 is a survival tower-defense game where you try to build a scalable planetary system against destructive space objects. It was made for GMTK Game Jam 2024 in 4 days.

This game is optimized to be played on desktop browser. You can play it on mobile browser, but the controls will be a bit clunky.


→ Controls

Use left click mouse to buy orbitals, place orbitals and use skills.


→ Hints

  • Don't forget to place a fixer on both planets. But be careful, it gets more expensive!
  • Try to place a moon on another moon's orbit. When you scale the planet down, the moon will go REALLY BIG.


→ Theme Interpretation

The theme is "Built to Scale". There are several layers on how we interpret the theme:

  • Concept - the first concept that comes to mind is to create a game about something MASSIVE. and what's more massive than a solar system?
  • Core Mechanics - when it comes to scale, other than making objects bigger and smaller, we also feel like building a "scalable" system fits the theme. You will need to plan your resources carefully, so you the system won't collapse on itself.
  • Extra Mechanics - to fit the theme more, we also design a usable skill that makes you able to make the planet scale up or down! (p.s. it has an effect to the orbit's speed and size)


→ Team

@liminalbeams - game design, code and music.

@hyo - game design and visual.


→ Credits / Asset Used

AlotofImpacts - 5 Frame Impacts - 4 variations red

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