The Mystical Crate is located on the apartment complex near the motel in Sunbury, a settlement overrun by bandits in Once Human. To reach it, climb up to the vending machine near the parking lot. The Mystical Crate is on top of a large brick building with a clock on the south side of Sunbury Middle School.
To find the Mystical Crate, head across the street from the motel and look for the chicken fast-food joint across the street. In Once Human, players can find the Mystical Crate, two Weapon and Armor Crates, and other chests in Sunbury Middle School. The map in the game provides detailed steps to navigate and uncover the loot inside the crates.
Sunbury Middle School is a location in Once Human’s Broken Delta where players can find the Mystical Crate on top of a brick building with a clock. Scavenging through the abandoned halls of Sunbury Middle School in Once Human is a popular activity.
The Mystical Crate is located on the south side of the main school building, which can be climbed via scaffolding. The DaOpa community, a Twitch.tv live streamer, fansite maker, and guide maker, has 253 subscribers in the DaOpa subreddit.
In summary, the Mystical Crate, two Weapon and Armor Crates, and other chests can be found in Sunbury Middle School in Once Human.
📹 Once Human Sunbury Mystical Crate
Guide on how to complete Sunbury location via finding the mysterious treasures, weapon and gear boxes from Once Human.
📹 Once Human Sunbury Middle School Mystical Crate Location Guide
Basically what @ChuggEonar said, you don’t have to do that crazy combo. when you are running up to the roof from the wooden ramps, ignore the hole with the arrow pointing on the right and just continue to the left a little bit inside the silo thingy. There is a one way sign that points where you want to go, if you look a little to the left at 0:57