A gacha game is a game that uses randomized pulls to unlock characters, items, weapons, cards, or other rewards. The name comes from capsule toy machines that give random prizes.
How gacha systems work
Players spend in-game currency for a chance at rewards with different rarity levels. Some currency can be earned by playing, while some may be bought with real money.
Why odds matter
Because rewards are random, players pay close attention to drop rates, pity systems, duplicate rewards, and whether strong items require heavy spending.
Gacha systems overlap with loot boxes and microtransactions, but many gacha games build the whole progression system around repeated pulls.