... says:
Can simply anyone join ?
yes
... says:
When will it be and where will the server be located ?
date is unkown atm, server in tmufx was located in UK
... says:
Do you have to sign up or will it follow the first come, first serve principal ?
you just need to join the server before 1st round (time is usually 11.00 CET)
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How many slots will the server have ?
enough, there were ~50 players
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Will the server allow spectators ?
yes
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And what about the maps (what style, how many, what length etc.) ?
check KO Tracks Building thread in this subforum