Mini Mayhem | Devpost

The thumbnail for the game.
The lobby sign showing the players the games.
The Wipeout game
The Only Up game
The Hexagon game

Inspiration

We wanted to build a chaotic but rewarding party game world where people could instantly jump in, compete, and laugh, all within a few minutes. Inspired by games like Fall Guys and Roblox obstacle courses, we aimed to bring fast-paced, social competition to mobile in the form of replayable mini-games.

As two students, we collaborated closely one using the Horizon Worlds Desktop Editor, and the other creating custom 3D objects in Blender. Despite the technical limitations, we combined our skills to build something original and fun.

What it does

Mini Mayhem is a mobile-friendly party world where players can jump into three competitive mini-games: • Hexagone – A survival arena with vanishing platforms. Last one standing wins. • Wipeout – Time your jumps and dodge the chaos in an obstacle gauntlet. • Only Up – A vertical climbing challenge requiring precision and nerves of steel.

Each game lasts 1–2 minutes, is replayable, and supports leaderboards to track best times and competitive wins. It’s designed for quick fun with a “one more try” feeling.

How we built it

We used the Horizon Worlds Desktop Editor and wrote all logic in TypeScript. Our development setup involved two students working in tandem: • One used a Windows machine to build and script the world in the editor. • The other designed and exported custom 3D assets using Blender, integrating them into the world.

Key features: • Event-driven game logic • Checkpoint & teleport systems • Mobile-optimized design • Seamless game-switching via the hub

Challenges we ran into • Balancing game difficulty for fun and fairness. • Working within the scripting and object limitations of Horizon Worlds. • Building three distinct game modes in one world without overloading performance.

Accomplishments we’re proud of • Creating three distinct, polished mini-games inside one cohesive world. • Getting everything to run smoothly on mobile with minimal bugs. • Designing a game loop that feels addictive and rewarding.

What we learned • How to collaborate effectively across different platforms. • How to push Horizon Worlds’ engine to support complex game logic and transitions. • The value of continuous testing and iteration based on player flow and feedback. • That simplicity + replayability = high engagement on mobile.

What’s next for Mini Mayhem

We’re just getting started. Upcoming features include: • A shop for unlocking cosmetic items and effects. • Quests that guide players through challenges and exploration. • More minigames added to the hub over time. • Improved feedback systems including sounds, animations, and UI polish.

Genre:

Party Game

We selected the Party Game genre because Mini Mayhem is all about short, social, chaotic fun. It’s built for quick competition with friends, packed into bite-sized gameplay loops that make you want to try again and again.