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Build Mobile Threejs Games

Meng ToCommunityCreated by Meng To

  • Skill
  • Guidelines
  • Software development
  • MIT
  • No issues found
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From the author

Build, tune, or test a Three.js game for mobile web. Use for touch movement, action controls, target selection, touch inventory, safe areas, portrait/landscape layouts, responsive HUD, battery/performance budgets, and real mobile browser QA.
— the description by Meng To

AutoGineer summary

Written by AutoGineer from the skill’s own files, not by the author

This skill provides a structured approach to building mobile-first Three.js games. It focuses on the unique constraints of mobile web development, including touch-based interaction design, responsive HUD layouts that adapt to orientation changes, and performance optimization strategies to ensure smooth gameplay on mobile hardware. The workflow emphasizes rigorous testing across various mobile browser conditions to ensure stability and usability.

What it does

  • Implements touch-based movement and action controls for mobile interfaces.
  • Designs responsive HUDs that maintain legibility across portrait and landscape orientations.
  • Manages performance budgets to ensure smooth frame rates on mobile devices.
  • Handles mobile-specific browser behaviors like audio unlocking and background state management.
  • Provides guidelines for safe area usage and touch target optimization.
  • Facilitates quality assurance testing for mobile-specific scenarios like multi-touch and long sessions.

When to use it

  • When developing a new Three.js game intended for mobile web browsers.
  • When optimizing an existing desktop-focused Three.js game for mobile performance.
  • When designing touch-based control schemes for 3D web environments.
  • When performing quality assurance on mobile web games to ensure cross-device compatibility.

Advantages

  • Ensures consistent gameplay experiences across different mobile screen sizes and orientations.
  • Prioritizes mobile performance to prevent battery drain and overheating.
  • Improves user accessibility through optimized touch targets and clear control feedback.
  • Reduces development friction by addressing common mobile web pitfalls early.

Usage examples

“Help me design a touch-based movement control for my Three.js mobile game.”
The agent will provide a layout strategy for reachable movement controls that avoid unsafe screen areas and provide clear visual feedback for user interactions.
“How can I optimize my Three.js game for low-end mobile devices?”
The agent will suggest adaptive quality defaults, performance budgets, and decorative effect scaling to maintain a stable frame rate on limited hardware.

Install

  1. Download the skill as a ZIP:

    https://autogineer.com/agent-skills/mengto/build-mobile-threejs-games/download

  2. Unzip it into the cross-client skills folder of your project:

    mkdir -p .agents/skills && unzip build-mobile-threejs-games.zip -d .agents/skills

Documentation by Meng To

Build Mobile Three.js Games

Treat mobile as a primary control and performance surface.

Controls

Provide a clear movement control, reachable primary actions, target selection, cancel/reset paths, and non-drag alternatives for inventory. Keep controls out of unsafe areas, avoid overlapping action zones, and show feedback for held, unavailable, and queued actions.

Responsive HUD

Design for representative portrait and landscape viewports. Keep vital status, target data, inventory, tooltips, and dialogs legible without covering the playfield. Support orientation changes without resetting gameplay state.

Performance and QA

Use device-appropriate quality defaults and adaptive decorative effects. Test touch targets, multi-touch, long sessions, audio unlock, pause/background return, reduced motion, low-end quality, and actual mobile-size viewports in the repository-approved browser.

Files

agents/openai.yaml

interface:
  display_name: "Build Mobile Three.js Games"
  short_description: "Build responsive touch-ready Three.js games"
  default_prompt: "Use $build-mobile-threejs-games to improve this Three.js game for mobile."

Requirements and compatibility

Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta

“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.

Security

No issues found by our static scan· No issues found

A static scan is not a guarantee. Skills are third-party content: review a skill before you let an agent use it.

Attribution and licence

Created by
Meng To
Publisher
Meng To (Community)
Source
MengTo/Skills · agent-skills/game-development/build-mobile-threejs-games · commit 5ea1661
Licence
MIT License (redistribution allowed)
  • LICENSE (added by AutoGineer from LICENSE)
  • ATTRIBUTION.md (written by AutoGineer)
Synced

AutoGineer is not affiliated with or endorsed by Meng To or Meng To.

Download ZIP

The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download build-mobile-threejs-games.zip