Got a reply from SpilGames:
Thanks for contacting me.
I’d like to let you know that we were not aware of this copyright infringement when we decided to purchase Green Grey World. Because we never intended to do anyone harm with this, I’d like to ask you if there is anything we can do for you.
Because we invested in this game, we would rather not take it down from our portals, but maybe there is something else that we can do for you.
In any case, we will discontinue our relationship with the developer of Green Grey World.
Take care,
Miss Martine Spaans \\ Licensing Manager
Um... Yeah. Not exactly what I wanted to hear, there.
Edit: Actually, misread "we will discontinue our relationship" as "we will continue our relationship." So a little better now.