The World Cup will kick off at Moscow's 81,000-seater Luzhniki Stadium at 01:00am AEST, with the host nation facing Saudi Arabia.

A free train with fans who will attend this match arrived in Moscow from St. Petersburg.

"A total of 13 trains departed yesterday, 14 will depart today, 23 will depart tomorrow. We provide a total of 444,000 free seats in these special trains," Federal Passenger Company General Director Petr Ivanov told journalists.

Earlier it was reported that over 1,000 fans would come to Moscow on Thursday to attend the opening match.

As many as 734 additional trains will be put into service to provide free transportation for fans and FIFA-accredited journalists. In order to receive free travel, passengers need a valid ticket to at least one of the tournament’s games and a Fan ID.