These competitions usually require players to use their virtual coins or gems as entry fees.
http://horsecity.ru/phpBB3/viewtopic.php?f=22&t=185040
http://www.lada-xray.net/showthread.php ... post148491
http://www.prepody.ru/topic50417.html
https://mmomakemoneyonline.net/threads/ ... el.503958/
viewtopic.php?t=92492
https://one-diz.3dn.ru/forum/12-13571-1#19826
http://forum3.bandingklub.cz/viewtopic. ... &t=1219700
viewtopic.php?t=190688
viewtopic.php?t=123117
https://debate.socialism.nl/forum/showt ... tid=200168
viewtopic.php?t=93648
https://talkingpoints.org/subx/showthread.php?tid=4886
http://forum3.bandingklub.cz/viewtopic. ... &t=1331257
http://www.prepody.ru/topic76801.html
http://oldsite.giessen46ers.de/fantalk/ ... 1&t=210529
viewtopic.php?t=37996
http://ewmen.com/viewtopic.php?t=742035