Pikmin 4 is a relatively short game when all's said and done, at least when it comes to the main story, anyway. Most players will be able to complete it in under 15 hours if they focus only on the main story objectives, but there's plenty of other content to keep players busy once they've rescued Captain Olimar and watched the end credits role.
Pikmin 4: What to Do After Finishing the Game (Post-Game Content Guide)
