Panel Attack is a very accurate, free, open-source, online multiplayer Panel de Pon / Tetris Attack clone for Windows/Mac/Linux
The discord server is where we go to hang out and talk about the game, as well as download and share custom graphics packs, sound packs, and puzzles. You can use the #matchmaking channel to find an opponent, and you can join in bi-weekly and seasonal tournaments too!
Panel Attack is very easy to set up. Just download the zip file below, unzip it, and run panel.exe. Set your controls, set your name, and you're ready to go! Click the button below to download the latest version of the game.
Here's an introduction video, by community member Graff: