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Resume

Yisi Liu — Game Developer & Software Engineer

📧 yisi2009.liu@gmail.com · GitHub · itch.io · Portfolio

Projects​

Whisker (July 2026) — COSMOS final project, team lead & spokesperson​

Cozy 2.5D baking game · Unity · C# · 3-person team · COSMOS 2026, UC Santa Cruz

  • Led a three-person team: organized deadlines, turned the game concept into a playable release, and presented demos and playtests to professors for feedback
  • Programmed core gameplay systems — baking, pick-up, dialogue, order fulfilment, and related systems
  • Designed and refined the UI layout so mechanics and ideas read clearly in play
  • Implemented sprite sheets, sound effects, and music; released on itch.io on the program’s final day
  • Play on itch.io → · Source + design doc → · case study →

Whisker 2 (August 2026 – Present) — solo rebuild​

Reimagined version of Whisker · Unity · C# · independent project

  • Solo rebuild to explore ideas cut from the COSMOS deadline: inventory, multiple customers per level, and visual effects
  • Expanded level design — recreated the Bakery and added Garden and Café environments
  • Improved UI/UX with a pause menu and settings for a clearer, more controllable play experience
  • Studied art and animation to push the artistic side of the game alongside the systems work
  • Dev log → · Technical case study → · Source →

Island Infinite Runner (June – July 2026) — solo​

3D infinite runner · Unity · C# · released on itch.io

  • Designed a runner in a stationary world space, with a procedurally generated path for the player
  • Added power-ups, coins, and HUD elements (score, time, path remaining)
  • Built an end screen with UI motion using DOTween
  • Play on itch.io → · project page →

Murder Mystery Game (May 2025) — AP Computer Science A final, team lead​

2D mystery game · Unity · 3-person team

  • Led and organized a three-person team to ship the class final project
  • Designed and programmed core systems: guess, clue, and interrogation loops
  • Drew the start page and clue panels; added music and sound effects
  • Presented the finished game to the class

Sharpshooter (May – November 2025) — solo​

3D third-person shooter · Unity · C#

  • Built player movement with special effects and animation
  • Designed bird-enemy AI with complex, varying attack patterns
  • Complete state machine architecture for player movement (idle, move, sprint, aim, roll, crouch)
  • Project page →

Technical Skills​

CategorySkills
Game EnginesUnity 6 · Godot · GameMaker · Ren'Py · Bitsy
LanguagesC# · Java · Python · JavaScript
PatternsState machines, behavior trees, object pooling, event systems, procedural generation
ToolsGit/GitHub, Aseprite, VS Code, Rider
PlatformsPC, WebGL

Education​

Amador Valley High School — Pleasanton, CA (Expected graduation: June 2027)

9 AP courses completed through junior year · AP Scholar with Distinction

Includes AP Computer Science A (Java) — A both semesters · AP Calculus AB · Calculus I at community college · Cybersecurity (CTE: Software and Systems Development completer)

Activities​

  • COSMOS 2026, UC Santa Cruz — Game Design cluster (Summer 2026) — four-week residential intensive; led the three-person team that shipped Whisker · also volunteer Cluster 5 weekly writer for Macrocosm
  • Volunteer Unity Instructor, CACC Chinese School (2024–2025, returning 2026–27) — lead instructor for Introduction to Game Design with Unity; free Saturday Zoom class taking beginners from C# fundamentals to a finished game
  • Independent Python Tutor (starting autumn 2026) — writing my own beginner Python curriculum and tutoring one-on-one remotely; self-organised
  • Cross Country, Amador Valley High School (2023–2025) — two seasons, six days/week training
  • Track & Field, Amador Valley High School (2025) — competed in distance events
  • Game jam participant — 48h jam (2023, 2024)