VC Playground

Single‑file HTML demos Games • Physics • Utils
Collection of different scripts and applications. Pick a section below and explore.
EN JA PT

Games

Tetris
Classic
Classic Tetris game with modern UI, scoring system, and multilingual support (EN/PT/JA). Features next piece preview and level progression.
Open game/tetris1.html
Top‑down survival: move, auto‑swing sword, collect XP and pick upgrades. Multilingual UI.
Open game/game1.html
Interactive Rubik's Cube from 1×1×1 up to 20×20×20. Scramble, rotate layers on any axis, and auto‑solve.
Open game/cube.html
Classic checkers game against a computer opponent. Features multiple difficulty levels and a multilingual UI (EN/PT/JA).
Open game/checkers.html
Play chess against a basic AI. Features a multilingual UI (EN/PT/JA).
Open game/chess.html
Classic dominoes vs computer: draw/pass logic, scoring, and multilingual UI (PT/EN/JA).
Open game/domino.html
Inertia‑based ship in an asteroid field with drones, missiles and upgrades. Survive and rack up score.
Open game/game5.html
Snake FX
Classic+
Modern snake with glow, particles and fun power‑ups: speed boost, reverse, double vision and slow time.
Open game/snake.html
Pachinko
Arcade
Canvas pachinko with pegs, bins, scoring and multilingual UI. Click to drop or enable auto‑drop.
Open game/pachinko1.html
Three.js + cannon‑es neon pachinko: physics pegs, pockets and jackpot, UI in EN/JP/PT.
Open game/pachinko2.html
2D crane game on HTML5 canvas; tri-lingual UI (en/pt/ja).
Open game/claw-machine.html
Orbit Weapons
Roguelite
Orbs circle the player and deal contact damage. Kite foes, grab XP, and build synergies via upgrades.
Open game/game2.html
Returning projectiles that pierce and ricochet. Level up to add effects like bleed, trail, magnet and more.
Open game/game3.html
Place temporary turrets between waves and upgrade their stats while you survive progressively harder enemies.
Open game/game4.html
Navigate cave mazes with thrust & inertia to reach the goal. Avoid walls and enemy turrets.
Open game/game6.html
Fog‑of‑war maze crawler. Find keys, open doors, collect orbs and avoid enemies while leveling up.
Open game/game7.html
Upload an image and solve a sliding puzzle (3×3–8×8). Includes i18n (EN/PT/JA), timer, moves, preview and persistence.
Open game/custom_image_puzzle.html
Math Quiz Game
Educational
Arithmetic drills (add/sub/mul/div) with a tri-lingual UI (en/pt/ja).
Open game/math_quiz.html
Memory card game with fruit icons. Match pairs, beat the timer, and score points. Multilingual UI (EN/PT/JA).
Open game/flip.html
Classic strategy board game with three phases: placing, moving, and flying. Play vs computer or 2-player hot-seat.
Open game/morris.html
Classic Pac-Man arcade game with ghosts, power pellets, and multiple difficulty levels. Features multilingual UI and customizable controls.
Open game/pac-man.html
Classic Space Invaders game. Defeat waves of aliens and upgrade your weapon.
Open game/space-invaders.html
Classic Tic-Tac-Toe game. Play against a simple AI. Features a multilingual UI (EN/PT/JA) and theme support.
Open game/tic-tac-toe.html
Classic casino roulette game with a betting table, chips, and animated wheel. Features multilingual UI (EN/PT/JA) and theme support.
Open game/roulette.html
A classic casino-style slot machine game. Spin the reels and try your luck to win more coins. Features multilingual UI (EN/PT/JA) and theme support.
Open game/slot-machine.html
Defend your city from falling missiles. Use your cannon to shoot them down and protect your buildings.
Open game/missile-command.html

Miscellaneous (Physics Sandboxes)

Single‑ball physics demo inside a spinning hexagon. Tweak spin, elasticity, friction, gravity and size.
Open misc/spin1.html
p5.js multi‑ball sandbox with collisions, rotating walls, trails and extensive controls.
Open misc/spin2.html
Alternate physics sketch with numerous UI sliders (balls, gravity, trails, blur) and pause/reset.
Open misc/spin3.html

Utils

Full‑screen multilingual whiteboard with tools, pan/zoom, tabs, and persistence. Created by multiple AI models.
Open utils/whiteboard.html
Single‑file whiteboard with polished UI/UX, selection, stamps and paste. Created by GPT‑5.
Open utils/whiteboard_gpt.html
WordPad
Editor
Rich text editor with formatting, file operations, find/replace, and multilingual UI. Supports .txt, .docx, and .html import/export.
Open utils/wordpad.html
Single‑file canvas editor with layers, blend modes, filters, brush/eraser, gradient, shapes and text.
Open utils/ps1.html
Expanded UI: menus, advanced color picker, selections, export/import project, zoom/pan and more.
Open utils/ps2.html
Layered pixel editor for animation sprints: opacity, duplicate, selection/move, playback, import and export ZIP.
Open utils/sprint.html
Dev Utils
Converters
Client‑side converters: Base64, URL, MD5/SHA/HMAC, HTML/Unicode, JSON, CSV, YAML, XML. Multilingual UI and themes.
Open utils/dev_utils.html
Generate mock data for testing and development. Choose from various data types, locales, and output formats like JSON, CSV, SQL, and more.
Open utils/fake_data_generator.html
Single‑file SVG mind map: free/tree/radial layouts, add/edit/delete, zoom/pan, i18n and export/import.
Open utils/mindmap.html
A multi-function tool with a stopwatch, countdown timer, and a live clock. Supports multiple languages and light/dark themes.
Open utils/timer.html
To-Do List
Productivity
Simple and elegant to-do list with task management, completion tracking, and multilingual UI support (EN/PT/JA).
Open utils/todo.html
Copy Tool
Productivity
Clipboard management tool with multiple workspaces, drag & drop organization, and import/export functionality. Features edit and drag modes.
Open utils/copy_tool.html
Create and display customizable full-screen messages with adjustable colors, font sizes, and shadows. Features multilingual UI and theme support.
Open utils/fullscreen_message.html