Loot boxes are subject to legislation in some countries; other countries are debating legislation.

What is a loot box? Wikipedia states:

In video games, a loot box (sometimes loot crate or prize crate, among other names) is a consumable virtual item which can be redeemed to receive a randomised selection of further virtual items, ranging from simple customization options for a player’s avatar or character, to game-changing equipment such as weapons and armor. A loot box is typically a form of monetisation, with players either buying the boxes directly or receiving the boxes during play and later buying “keys” with which to redeem them.

… Loot boxes are regulated under gambling law in China, Japan, Australia, and the Isle of Man and are the subject of investigations by the gambling regulators of several more countries. They have been criticised as being anti-consumer when implemented in full-priced games. They are a common source of the virtual items used in skin gambling.

[Source]

Recent news about loot box legislation:

• German Authorities Are Considering a Ban On Loot Boxes
• Germany may ban loot boxes – “A University of Hamburg study says that videogames are increasingly embracing elements of gambling.”
• Swedish gambling legislation review unlikely to impact loot boxes – “Any review of gambling legislation will not necessarily include an investigation into loot boxes, says Swedish Games Industry spokesman”
• Sweden moves to classify loot boxes as gambling
• State senator wants to regulate loot boxes in Washington

[Image: By Source (WP:NFCC#4), Fair use, https://en.wikipedia.org/w/index.php?curid=55508954]