Mystery box sites

You pay a fixed price to open a box and get one item from a published list, weighted by odds. The good ones show every item and its exact chance before you pay. The industry calls them case opening sites, a name borrowed from CS:GO, where the same machinery was invented for weapon skins.

The mechanics can be, and the better ones publish provably fair seeds so you can verify a result afterwards. Legitimate is not the same as profitable. Every one of these sites keeps a margin on every box, and the ones that publish it are keeping around a tenth of everything staked. Over time the house keeps its margin, by design, which is why the sites that print the number are the ones worth using.

As entertainment, that is your call. As a way to buy something cheaply, no. If a box costs $50 and the site keeps 12%, six dollars of every fifty is theirs before a single prize is handed out. You are paying for the chance, not for a discount.

On a pack site you buy a pack and a real card comes out, and the card is the product. On a mystery box site the bet is the product, and the box might pay out a card, a watch, a pair of trainers or a voucher. They also carry the rest of the furniture with them: wager races, deposit bonuses and play-through rules on withdrawals.

Whether it names its operator and company number, whether it publishes the odds on every item rather than just the headline prize, whether its provably fair system can actually be verified, and what the play-through policy says about getting money out. Everything else is decoration.

The prizes are real on the sites here: each one ships items or pays out, and our own feeds record the wins as they land. What is not real is the idea of a bargain. Every site keeps a margin on every box, and the honest ones print it.

The ones that publish the chance on every item, name the company behind them, and let you verify a result with a provably fair seed. Every site on this page publishes per-item odds. The order above puts the sites we can measure first, ranked on what they actually paid back.

Whichever sits at the top of this page right now. The order is live and ranks on measured payback, never on how busy a site is, so the number one changes. Read the review of whichever is first before you deposit.

Sign up, deposit by card or crypto depending on the site, pick a box and open it. The site rolls a result from the odds it publishes. You can usually keep the prize and have it shipped, sell it back for site credit at a price the site sets, or withdraw its value once any play-through rule is met.

Several give a free box at sign-up with no deposit: Boxed, Cases.gg, Krush and RillaBox on this page, and HapaBox. They are low-value starters, but worth taking to see the reveal and the sell-back price before you spend anything.