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! F on Steam are Zup! Z, Zup! 8, Zup! 2, Zup! 3, Zup!. They rank highest because their Steam community tags overlap most with Zup! F's — shared tags include Mouse only, Fast-Paced, Minimalist.
How are games like Zup! F chosen?
Every game is described by the tags Steam players vote on it. Rare, specific tags such as Mouse only, 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! F's. Popularity never affects the ranking.
