This is a tough question as all of the events in Stardew Valley have their own unique charms. Even those like The Dance of the Moonlight Jellies, which has no gameplay advantages to the player, is something that you should witness at least once. Plus, there are so many superb events like The Feast of the Winter Star and the Stardew Valley Fair. However, I would personally say that The Night Market is certainly one of the best. In my eyes, it is the second-best behind The Stardew Valley Festival as it has more to offer the player from a gameplay perspective. However, being runner-up in a line-up of events such as these is high praise indeed.