Mystery Boxes
How Item Upgrading Works — And What It Really Costs
Upgrading is a trade with published odds and an unstated margin. Here is how to read the real cost off the screen, and why laddering is worse than one jump.
Upgrader Journal
Authentication, resale value and the real odds behind item upgrading — designer bags, sneakers and watches, from the team that runs the trades.
Mystery Boxes
Is Upgrader Legit? What You Can Verify for Yourself
"Legit" is four different questions, not one. Here is which of them you can check yourself on Upgrader, the settled-withdrawal numbers, and the limits we will state plainly.
Mystery Boxes
What Is a Mystery Box? Loot Boxes and Case Unboxing Explained
Loot box, case, crate: one mechanic with a published pool and published odds. Here is how an opening works, what the boxes actually hold, and what to check first.
Mystery Boxes
Provably Fair, Explained — And How to Verify Any Round Yourself
Every site says its games are fair. Provably fair is the difference between saying it and proving it: a commitment published before the round, and an outcome anyone can recompute afterwards.
