itch.io

  Block Battle Royale is a free browser-based falling block game with real-time multiplayer.               

  Play here: https://jul1205.itch.io/block-battle

  I built this entirely using AI (Claude) — no manual coding. It runs directly in the browser with no        

  download required, and works on both PC and mobile.

  Game Modes:                                                                                              

  - Solo — Classic gameplay with a unique item system. Random power-ups drop during play: Bomb (explodes 3

  rows), Angel (clears entire board), 2x Speed, ½ Speed, and Cloud (hides ghost piece).                      

  - 1v1 Battle — Random matchmaking or private rooms with room codes. Clear lines to send garbage rows to

  your opponent.                                                                                             

  - Battle Royale — 3-10 players, last one standing wins. Garbage is distributed randomly among survivors  

  with weighted targeting.              

  Other Features:

  - Point-based ranking and leaderboards                                                                     

  - Beginner mode with separate rankings                                                                   

  - Mobile-friendly with touch controls 

  - Web Audio BGM & SFX                

  Built with vanilla JS, Express, WebSocket — all in a single HTML file with no build step.                  

  Would love to hear your feedback!                                                                          

https://jul1205.itch.io/block-battle

  ▎ I built a web-based Tetris game using AI (Claude). Playable directly in the browser.                     

  ▎ Features:                                                                                                

  ▎ - Solo mode with item system (bomb, angel, 2x speed, ½ speed, cloud)                                  

  ▎ - 1v1 Battle – random matchmaking or private rooms with room codes                                       

  ▎ - Battle Royale – 3+ player survival mode, last one standing wins

  ▎ - Ranking system with point-based leaderboards                                                           

  ▎ - Beginner mode with separate rankings                                                                

  ▎ - Mobile-friendly with touch controls                                                                    

  ▎ - Built with vanilla JS (no framework), Express, and WebSocket – single HTML file frontend

  ▎ Tech stack: Node.js, Express, WebSocket (ws), Canvas rendering, Web Audio API for BGM/SFX – all in one   

  index.html with no build step.

  ▎ The garbage line system in battle mode sends junk rows to your opponent when you clear lines, making it 

  competitive. Battle Royale randomly distributes garbage across all surviving players.