Hi!
Thank you for your suggestion. Indeed multiplayer, especially with different tactics like this, would be cool. Sadly, we have not planned that from the beginning of developing Sipho and because of that, it would be a tremendous job of converting it to multiplayer. While in Early Access we want to focus on delivering quality single player experience. After that - who knows, we might be confident enough to try, but that would be far in uncertain future. We want to have this game as a strong base to build upon first.