Matches come from the tags Steam players vote on each game, weighted so a rare tag counts for far more than one that sits on half the store. A game's popularity never moves it up this list.
The closest matches to Zup! 6 on Steam are Zup! 3, Zup! 2, Zup!, Zup! 8, Zup! X. They rank highest because their Steam community tags overlap most with Zup! 6's — shared tags include Puzzle, Fast-Paced, Minimalist.
How are games like Zup! 6 chosen?
Every game is described by the tags Steam players vote on it. Rare, specific tags such as Puzzle, Fast-Paced, Minimalist count far more than catch-all ones like "Indie" or "Singleplayer", and each game is scored on how closely its whole tag profile matches Zup! 6's. Popularity never affects the ranking.
