Method. We tokenized the name + description of every game flagged by Fast climbers, computed TF-IDF, and grouped games that share their top distinctive terms. This cluster's defining terms: cars, users, https, different, tokyo, racing, unique, remodel, greenville, roleplay.

Why this works. Multiple unrelated games climbing while sharing rare vocabulary tends to indicate a real thematic trend (e.g. a new genre wave) rather than a single hit.