Gemini 3 NYC Hackathon
Feb 28, 2026 · New York, NY
WALL STREET BANANAS is a 1980s trading floor simulator where players walk a 2D floor and negotiate stock trades with 22 AI-powered NPCs, each with a distinct…

Whatif is an AI-native local studio using a swarm to help independent filmmakers build worlds with git enabled version control, generative story board…
Art is presented as static objects with text-heavy placards and audio guides, while the real reasons people care: conflict, emotion, symbolism, and the…
## What It Does - **Rhythm gameplay** — arrows scroll on the host screen; players tap their phones to hit beats - **Live music** — Lyria RealTime streams…

CORO is a real-time collaborative music engine that turns any audience into a live orchestra. Audience members join a room via QR code, pick a musical role…

Syncro is an AI-powered editor that keeps your narration and footage aligned. Drop in clips and a script or record voiceover and Syncro helps you order clips…

Maha Mantra Learning Studio is an AI-powered devotional music practice platform that guides users through structured mantra chanting using…

Recess is a real world task adaptive game using google ai suite to provide activity heatmap and gameplay.
An automated game / AR development tool for overlaying light animations onto 3D / real-world objects. Currently a bunch of tools (LLM based) are making NPC's…
A generative game, where user submit their song playlist, and Gemini turns them into levels for the user to play in the form of a rhythm game. The levels…
An AI-powered app that reads your mood from a photo and creates music (and video) to shift it—plus a Kids mode that teaches through songs in family voices and…

WanderFM is an app that gives you a soundtrack to your life based on where you are. No longer will you need to spend the time choosing the perfect playlist…
POView is an autonomous spatial intelligence platform that transforms static maps into dynamic, AI-driven contextual experiences. I aimed to abandon…

CineSnap is an AI-powered photo-to-cinema system that transforms a set of uploaded photos into a cohesive cinematic short film by analyzing all images as a…

Gemini Band is a AI music generator that uses a node based editor

Resonance breathes life into movie scripts. Paste a story or screenplay. Resonance outputs a cinematic narration, with dialogue, soundtracks, sound effects…

It seems like most movies these days are sequels and superhero movies. What if the greatest movies never ended — they collided? I used the scripts from the…

Tool to create fictional humorous social media blasts for professionals.

PromptStrike is a browser based 3D voxel arena combat game powered by Gemini at every layer. Describe a weapon like “black hole cannon” and it generates…

We’re building a dynamic, targeted ad tool that generates full ads in seconds—tailored to personas, trends, and demographics. SnappyAds turns a single…

Museum Wakes (https://museum-wakes.onrender.com/) transforms the Met's Egyptian Wing into an AI-powered narrative mystery. Visitors walk real galleries, scan…
With social media and trends driving consumption in our current market, VibeRooms provides top notch recommendations based on a user’s mood, current likes…

**GameTok* is a TikTok-style infinite feed of AI-generated mini-games. Swipe through unique browser games created on the fly by Gemini 3 Flash, each with its…

Director's Cut is an emotion-adaptive film engine that turns passive viewing into a personalized story. A short mystery plays on screen while your webcam…

Earth.ly is a real-time multiplayer music experience built with Lyria Realtime. Walk across a living 3D planet and approach Lyria stations to hear unique…

Turns images into interactive assets
Compose your own songs or get the chord sheet (ukulele/piano/guitar) for any existing song

Lorekeeper is a browser-based RPG engine where NPCs genuinely remember you and the world keeps moving when you leave. Pick a world — a fantasy trading post…
A visual narrative graph where you build and branch stories node by node, with AI suggesting, never deciding. Your story, your canon, your control.

Resonance is a biometric-driven adaptive music system that reads your body signals (Oura Ring, heart rate, HRV, menstrual cycle) and uses Gemini to interpret…

AcousticIsle is an AI-native platform linking live human movement to protected Indigenous music archives. Our 5-agent system turns motion into…
https://hackathongemini-5d9dnvnqu-ad6806-3315s-projects.vercel.app/ (Tasks on locations can take 3-5 seconds to load.) We built a real-world AI game powered…

MoodSync DJ is an environment-aware, adaptive music generation application. It solves the problem of static, repetitive background music by leveraging the raw…
PlotTwist is a multiplayer party game built around Google’s Gemini stack to turn audience input into live cinematic storytelling. Players join from their…

Capsule is an open-source engine for causal consequence modeling. The demo: zoom into a 3D globe at 2000 BC, change one thing, zoom out, watch consequences…
Arcana Academy is an AI-powered mystery game that uses Gemini's 1M-token context window to create NPCs with genuine persistent memory. You have 5 days to…

Aria is a music-reactive AI companion that vibes with both you and your music. She's a 3D avatar that listens to your music, watches your face, and reacts in…

Your Cubicle Ally is an AI-powered, scenario-based compliance training simulator that turns workplace dilemmas into interactive roleplay sessions. How it…
Willowbrook is a generative AI simulation where autonomous agents inhabit a living, breathingt town. Powered by Gemini 2.5 Flash, each agent possesses…
A joke lands wrong, the room shifts, and by the time you understand what happened, the moment is gone. Audience Mind Split drags that gap into the light…

Moltywood is a platform where AI agents create music, visuals, and media as autonomous creative personalities — think AI rappers, singers, and DJs that…
Opponent Process is a 2.5D, browser-based, first-person brawler that completely destroys the traditional gaming controller. Set in a gritty, retro-cyberpunk…

Zero to One is a startup founder simulation game where you go from getting laid off at Meta to pitching at YC Demo Day. Every NPC (Garry Tan, early users…

You and four AI-powered NPC agents are trapped together during a viral outbreak. One or more NPCs are secretly infected and hiding it. Everyone has secrets…

TasteTales is an AI-personalized restaurant Stories app: like Google Maps discovery, but when you tap a restaurant you get an Instagram-style Story reel…
We are Score a crazy ai engine for crowds and narration! https://clever-gratitude-production.up.railway.app/
A collaborative post-production AI integrated workflow that allows users to live contribute to post-production video generation for everything from social…

A desktop musical companion that helps you stay focused and in the zone. Allows users to set blocked sites and steer the music as they work. Users can steer…
4 channel AI powered radio-- talk show, conspiracy monologue, being able to call in and make requests, and generate music with lyria

NPCs in games are props. They have scripted lines, fixed routines, and no memory of you. You can save a village, come back a year later, and the blacksmith…
mulitplayer app that allows players to upload images & allow others players to draw them
We let any user to create alternative story of their favriote shows or movie, simply by upload links, and it will detect their favorite characters and…

We give anyone the ability to turn their favorite songs into quality images. With an ai review of the full audio and a variety of customizable image themes…
HyperFounder is a high-fidelity pitch simulator for early-stage founders. The real bottleneck today is not building an MVP, but figuring out what is worth…

Stuffi brings a child’s favorite stuffed animal to life using Gemini 3 Flash & Multimodal Live API. We transform a photo into a unique, persistent NPC with a…

An interactive, persistent, and intelligent fashion game world where customers continuously flow in to create their own hyperrealistic avatars. At the heart…
There’s a new movie out. How do you decide if you should watch it or not? There’s a lot of places to read film reviews and news - Rotten Tomatoes from…

I research and use how Google Gemini tools help creators express themselves, create stories, create marketing assets, and has potential to become a new kind…