In Poland, negotiations were held with the author of popular books to purchase the copyrights. The copyrights were acquired at a reasonable price. While the first two games achieved average sales, the third game attracted great attention and reached significant sales figures. Even the book covers featured visuals from the game, leaving the books themselves in the background. Angered by this situation, the author threatened to file a major lawsuit against the company. The company, acting conciliatory, reached an agreement with the author.