Does it require a complex build environment?

No, the agent is constrained to produce standalone files with no build step required, making the output immediately playable in any modern web browser.

What is 'Game Juice' and why is it included?

'Game Juice' refers to polish elements like screen shake, particle bursts, and squash-and-stretch effects that make a game feel responsive and satisfying to play.

Can it create custom graphics without external assets?

Yes, it uses a procedural sprite system to generate premium visuals including gradients, glows, shadows, and idle animations, avoiding 'sticks and boxes' primitives.

What game engines does this skill support?

The skill primarily uses KAPLAY.js for 2D games and Three.js for 3D games, delivering the final product as a single HTML file with CDN imports for easy sharing.

How does the agent ensure the game is actually playable?

The skill includes an autonomous playtesting loop that runs a headless browser (playtest.js), captures screenshots, and simulates inputs to verify logic, performance, and state changes.

Browser Game Agent

Name: Browser Game Agent
Author: tolitius

bytolitius

•

ゲーム開発

Automates the design, implementation, and playtesting of polished 2D and 3D browser games using KAPLAY.js and Three.js.

The Browser Game Agent is a comprehensive development skill that enables Claude to function as an autonomous game studio. It follows a rigorous workflow starting from game design analysis and physics validation to implementation and automated playtesting. The skill prioritizes 'game juice'—emphasizing responsive controls, screenshake, particle effects, and procedural sprite generation—to ensure that every creation feels professional and polished. By utilizing headless browser testing and visual audits, the agent iteratively refines mechanics and aesthetics until the game meets a high standard of playability and visual depth.

主な機能

01Physics and reachability validation to ensure balanced gameplay

02Automated headless browser playtesting with screenshot-based visual audits

03Procedural sprite and visual asset generation with multi-layer polish

04Autonomous game design decomposition and core loop planning

05Support for KAPLAY.js (2D) and Three.js (3D) with integrated API references

0612 GitHub stars

ユースケース

01Building 'Minimum Viable Games' (MVGs) with sophisticated visual effects and feedback

02Creating interactive educational simulations with accurate scientific physics

03Rapidly prototyping polished arcade or puzzle games from a text prompt

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add tolitius/salvador game

For use in Claude.ai and ChatGPT

Download Skill