Tickets went on "sale" this morning on Ticketmaster for the three games (game 3 is next Friday, games 4 and 5 are next Saturday/Sunday if necessary).

I just picked up mine and it was absolutely free, no Ticketmaster fees, limit 4 tickets per game per person. 

Link to info is here: https://www.milb.com/columbus/news/free-governors-cup-playoff-tickets-re...