In Real-time Chess (or Kung-Fu Chess, Ninja Chess), all pieces can be moved simultaneously, but there is a short cool-down afterwards. This is a very fun multi-player game, completely different from regular chess!

Real-time Chess is the most popular Self-Hosted alternative to Kung Fu Chess.
Real-time Chess is the most popular Open Source & free alternative to Kung Fu Chess.
- Real-time Chess is Free and Open Source







