Gacha pulls are a popular monetization mechanic in free-to-play mobile RPGs. Inspired by Japanese capsule-toy vending machines, gacha mechanics involve players spending in-game or real-world currency to unlock random characters, items, or abilities. These systems are prevalent in games like Fate/Grand Order and Genshin Impact, where players collect characters or gear to improve their teams. The excitement of gacha lies in the chance to obtain rare or exclusive items, which can give players a significant advantage in the game.

The gacha system has become one of the most lucrative monetization models in mobile gaming, driving billions of dollars in revenue for developers. While gacha mechanics are engaging for many players, they have been criticized for promoting gambling-like behavior, leading to discussions about regulation in certain countries. Despite this, gacha remains a dominant force in the free-to-play mobile game market, as players continue to be drawn to the chance of unlocking powerful characters and rewards. Developers frequently introduce new content and limited-time events, keeping the gacha experience fresh and incentivizing players to continue spending on pulls.