How does gacha probability work?

How Does Gacha Probability Work?

In the world of gacha games, probability plays a crucial role in determining the outcome of pulls. A gacha is a loot box system that allows players to acquire items or characters randomly. The probability of getting a specific item or character is often shrouded in mystery, making it difficult for players to understand how it works. In this article, we’ll delve into the world of gacha probability and provide a comprehensive overview of how it works.

Types of Gacha Systems

There are two main types of gacha systems:

• Drops Systems: In this system, the probability of getting an item or character is the same for each pull.
• Roll Systems: In this system, the probability of getting an item or character changes based on the number of pulls.

How Gacha Probability Works

Gacha probability works by using a random number generator (RNG) to determine the outcome of a pull. The RNG generates a random number between 1 and 100, which corresponds to a specific outcome. The probability of each outcome is predetermined and based on the drop rates for each item or character.

Drop Rates

Drop rates refer to the probability of getting a specific item or character. In most gacha games, drop rates are expressed as a percentage, with a higher percentage indicating a higher chance of getting the desired item or character.

For example, let’s say a gacha game has a 5-star drop rate of 1%, which means that there is a 1% chance of getting a 5-star item or character.

Soft Pity and Hard Pity

Soft pity refers to a situation where the drop rates increase after a certain number of pulls. For example, a game may have a soft pity system that increases the drop rate to 50% after 50 pulls.

Hard pity, on the other hand, refers to a situation where the drop rates decrease after a certain number of pulls. For example, a game may have a hard pity system that decreases the drop rate to 20% after 90 pulls.

Tables and Charts

Here’s a table showing the probability of getting a 5-star item or character at different pull counts:

And here’s a chart showing the probability of getting a 5-star item or character at different drop rates:

RNG and Variance

RNG refers to the random number generator that determines the outcome of a pull. RNG uses a complex algorithm to generate a random number, which corresponds to a specific outcome.

Variance refers to the degree to which the actual outcome differs from the expected outcome. In gacha games, variance can result in outcomes that are significantly different from the expected probability.

Conclusion

In conclusion, gacha probability is a complex system that involves using RNG to determine the outcome of a pull. The probability of getting a specific item or character is influenced by drop rates, which can be affected by factors such as soft pity and hard pity. By understanding how gacha probability works, players can make more informed decisions when it comes to pulling items or characters.