Well they could allow a beginners planet for which only new players can practice.
How does this cost money?
You can access free advertising.
The offers would be cost less since it's a online game.

Free advertising would fail, I guess it'd be worth a shot though. Beginners planet won't work if there's only 1 "beginner" on there. I supose you could try and advertise Zone.. Though it'd be kinda hard since you'd have to advertise Graal first off, since it is kinda the base program.

Beginners planet was probably a dumb idea, free advertising on the other hand could work miracles. I've found plenty online games with free advertising sites :) Though on most you get ranked depending on how many people join through that site so we'll have to vote a lot to get it on the first page.....

We could advertise Graal as a package though make the Zone section of it stand out the most.