GameMaker GML

Isosceles Invasion

Physics-Based Platformer

Physics Focus
Solo Team Size
Prototype Status

Summary

Isosceles Invasion is a physics platformer built in GameMaker where your gun is also how you get around.

I wrote the physics from scratch; tile collisions, momentum, all of it. The twist is recoil: firing your gun pushes you the other way, so getting around the level means thinking about where you shoot.

Main Points

  • Physics: Custom collision and momentum, written from scratch.
  • Movement: Gun recoil is the main way to get around.
  • Levels: Layouts built around the recoil mechanic.

How It Works

Gun Propulsion

Shooting pushes you in the opposite direction, so the same button handles fighting and moving.

Collisions

Custom-written tile collisions and moving platforms instead of the built-in physics.

Enemies

Simple enemies that patrol platforms and react when you get close.

Screenshots

Gameplay Screenshot