Felix Deng.

UC Berkeley CS ’29 · games, AI, research

I build things people keep using.

games, AI companions, and the research behind them. Berkeley CS, shipped end to end.

See the workResume
4
apps live on the App Store
3
peer-reviewed papers
2,000+
users across 4 countries
1st
of 160+ · national game-dev comp

Selected work

Things I've shipped & published

Companion Connect chat: the user says they have been feeling isolated after moving, and the companion replies with suggestions for meeting people
The AI chat. The mood chip updates as the conversation goes on. Recorded at 2× speed.
AI / social impact

Companion Connect

AI companion app for teen loneliness — live on the App Store, 2,000+ users across 4 countries. 2nd place, Google IgniteCS.

Ionic ReactOpenAI APIPush notifications+1
The same duck subject regenerated across three prompt iterations: a flat circular vignette, then a monochrome city street, then a full-colour street scene with passers-by
One subject across successive prompt iterations. Played at 4× speed.
AI research

Visual Prompt Engineering

Two peer-reviewed papers on pairing LLMs with diffusion models to speed up creative writing — 39–51% better iteration efficiency.

GPT-4DALL·EPrompt engineering+2
A Hunt the Wumpus run: the player moves across the numbered hex map, falls into a pit, and is put through a three-question trivia round to climb back out, with each answer marked correct or wrong
Falling into a pit starts a trivia round — answer your way back out. Recorded at 2× speed.
Game development

Hunt the Wumpus

AI-guided learning game inspired by the text-only classic — first place at Microsoft's Hunt the Wumpus game development competition.

UnityC#Game AI+2
All work