Gacha games are video games that implement the gacha (capsule-toy vending machine) mechanic. This is somewhat similar to loot boxes, inducing players to spend in-game currency to receive a random virtual item. Most of these games are free-to-play mobile games, where the gacha serves as an incentive to spend real-world money.
The gacha game model began to be widely used in the early 2010s, faring particularly well in Japan. Almost all of the highest-grossing mobile games in Japan use it, and it has become an integral part of Japanese mobile game culture. Outside Japan, the game mechanism is also gaining popularity and is included in various Chinese and Korean games,