The time it takes to complete Only Up can vary significantly depending on the player's skill level and playstyle. Here are the details:
According to the Game Developer: The developer of Only Up has stated that the game has 40 to 120 minutes of gameplay.
Based on Player Experience
Main Story Completion: On average, it takes players about 5½ hours to complete the main story. The fastest recorded time is 1 hour and 6 minutes, while the slowest is 15 hours and 30 minutes.
Completionist Playthrough: For those aiming to explore every aspect and secret, it may take around 6 hours on average, with a range from 3 hours and 57 minutes to 7 hours and 35 minutes.
Speedruns: The current world record for speedrunning Only Up is about 18 minutes.
For more Only Up!, you can visit this address:https://only-up.org/