is there any alike games, which supports multiplayer?

I have mission about disconnect the stone from the storage. How can I do that? In tutorial window there is no information how to do that. I'm stuck because of that. I tried double click on connection, I tried click "DEL", I tried to move line in other direction, but nothing works....

The supply line paths are very critical, is that a design implement as a challenge to the game? Just curious why you wouldn't be able to have a supply line over top of another producer?

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Tutorial wants me to produce clothes, so I am. But I can't store them in storage, and the counter for clothes isn't going up, after clothes are produced, just the output dot turns red (probably meaning it needs a connection to deliver to). But nothing appears to take clothing as an input, including storage. So...I'm missing something, and the tutorial isn't clear at this point....