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 Gish on Steam are Rochard, BEEP, Capsized, Intrusion 2, Adventures of Shuggy. They rank highest because their Steam community tags overlap most with Gish's — shared tags include Platformer, Physics, Puzzle-Platformer.
How are games like Gish chosen?
Every game is described by the tags Steam players vote on it. Rare, specific tags such as Platformer, Physics, Puzzle-Platformer count far more than catch-all ones like "Indie" or "Singleplayer", and each game is scored on how closely its whole tag profile matches Gish's. Popularity never affects the ranking.
