I’m getting money for some game writing I did! Several years ago, when I thought I wanted to be a game designer and writer, I took a royalty-only project for a company called Seraphim Guard. They were known at the time for a small game book called Heartquest, a game of romance in shoujo manga. I got tapped to write a game book for fantasy anime called Spell-Slingers and Sword-Saints. I wrote it. The book went into limbo. The company changed hands a few time. I parted ways with them finally under bad terms.
About a year ago, the new owners of the company contacted me because they realized they had the rights to publish this game book. After some time, the decision was made to have someone else finish the missing bits of the manuscript and just cash me out rather than deal with the royalties. So, yay! Money!
$$
Yah, monies! So since you got paid, that makes you a professional.
Re: $$
Technically speaking, I got paid for work I did for Guardians of Order and Goodman Games as well. But I’d hardly call myself a “pro.”