Bloons TD5

Systems Programmer

April 2025

Tower Defense

Please contact me
to get access
to project files

Itch

Recreated Bloons TD5, the beloved tower-defense game where you deploy and upgrade monkey towers to pop relentless waves of balloons, using my own custom content-driven C++ game engine with JSON for all game objects and behaviors.

Here are the core systems I built for this project:

Prefab Service:
– Easily register and instantiate reusable “prefabs" for game objects and behaviors straight from JSON.

Node-Based Pathfinding:
– Define your bloon paths as a simple list of nodes and inherit from the path follower component to gain pathfinding behavior

Grid Service & Level-Design Tool:
– Divide the playfield into configurable cells, mark “invalid” tower
zones in real time, and feed that same data into…

Collision Service (Uniform Spatial Partitioning):
– Bucket colliders by grid cell, so towers only check nearby bloons instead of every single one, dropping the collision test cost from O(N²) to approximately O(N) where N is the number of colliders

Download the game zip file from the Itch link
Extract it and run the .exe file
Enjoy!

Select a map you want to play on
Click on the towers you want to purchase and place them on any valid positions on the map
Hit the "Play" button to start the spawning of a wave of bloons
Upgrade your existing towers or buy new ones and don't let the bloons reach the end of the path!