Update, 2nd September 2020

Thanks to all your feedback, a version with some new gameplay changes (as well as bug-fixes) has been released.

When playing with chums, completing a line in your own grid now fills in a hole in each of your team-mates areas. This really improves the multiplayer flow, and helps balance out your team. It makes small mistakes and gaps feel less punishing, and skilled play feel more rewarding.

-Changes--

• Added pause/resume feature to Chumless mode
• Added extra controls: Spacebar and Enter can now be used to drop & rotate blocks
• Added score bonus for dropping blocks early, bases on size, and current game speed
• Improved co-op gameplay (more help for your chums when you complete partial lines)
• Fixed: potential multiplayer desync when the game is not focused
• Fixed: player names not resizing correctly