Gacha is a Japanese term that refers to a type of vending machine or automated dispenser. The name comes from the onomatopoeic sound made when turning the crank of an early gacha machine, which resembled a traditional Japanese pump organ. These machines are commonly found in Japan and are used for various purposes such as selling candies, toys or even drinks.
In addition to its literal meaning, "gacha" has also become a popular term in the world of gaming, particularly in mobile games. In these types of games, players can obtain virtual items by inserting coins into a gacha machine and pulling a lever or pressing a button. Each pull results in a random selection from a set of characters, items or other rewards. This mechanic is often used to encourage repeated play and to monetize the game through microtransactions.
Overall, "gacha" can refer both to an actual vending machine as well as a popular game mechanic in mobile gaming.