R. N. Roe
Books about how things really work.
Even when the story is made up.
1 book on the shelf
New Non-fiction · 2026
The Price of Zero
How Free Games Make Billions
97 out of 100 players never pay a cent. So how do free games make billions?
A small studio above a Warsaw bakery spends a year building a free-to-play mobile game and learns the ten numbers that decide whether a free game lives or dies.
Coming in November 2026: Kindle, paperback and Google Play Books.
Open the bookAbout Roe
R. N. Roe has spent years inside the online game industry, close to the systems that decide what players see, buy and come back for. Roe writes about how such systems work, here and elsewhere. The Price of Zero is the book Roe wishes someone had handed them on day one.
Written with AI assistance. The story, the structure and every calculation are the author’s; the author has read, checked and edited every page and answers for every word.
Letters, questions about the numbers, typos: [email protected]