Not a dime. Not even a “service fee.” They take their cut when you deposit - that’s the real cost. In other words, the total sum is growing in direct proportion to the number of players. See what sets these types of games apart in the table below.
http://oldsite.giessen46ers.de/fantalk/viewtopic.php?f=9&t=249259
http://miweii.com/forum.php?mod=viewthread&tid=58924&extra=
https://67farms.st/viewtopic.php?t=5631
https://debate.socialism.nl/forum/showthread.php?tid=174575
http://frmklas.com.tr/threads/nyerogepek-jecpot-karacsonyi-jatekok-online.104337/
https://www.ww2.site/forum/viewtopic.php?t=66834
https://my-mobile.eu/viewtopic.php?t=527
https://www.ww2.site/forum/viewtopic.php?t=357392
http://www.lada-xray.net/showthread.php?p=248770#post248770
http://www.lada-xray.net/showthread.php?p=317998#post317998
https://wietmarkt.nl/viewtopic.php?t=632032