# Rate disclosure

> The publication of gacha draw probabilities, required by law in China since 2017 and South Korea since 2024, mandated by platform rules elsewhere, and pioneered voluntarily by Granblue Fantasy in 2016.

- Canonical URL: https://gachawiki.com/wiki/rate-disclosure
- Type: term
- Verification status: verified (facts checked 2026-07-09)
- Last updated: 2026-07-09
- License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Attribution: "Rate disclosure", GachaWiki, https://gachawiki.com/wiki/rate-disclosure

Rate disclosure is the publication of a gacha's draw probabilities: the per-rarity rates, featured-item shares, and guarantee rules that appear in a pull screen's "Details" text. Every number on this wiki's [comparison table](/compare/pity-systems) exists because some form of disclosure made it checkable.

Disclosure arrived through three channels:

1. Voluntary and reputational. [Granblue Fantasy](/wiki/granblue-fantasy) began publishing per-item rates in March 2016 after the Anchira incident, ahead of any requirement. Japan's industry body CESA adopted disclosure guidelines for member companies the following month, building on JOGA's 2012 rules. [[3]](#ref-3) Japan's framework remains self-regulation, not law.
2. Law. China's Ministry of Culture notice of December 2016, effective May 1, 2017, made China the first country to mandate loot box odds disclosure, including draw-record keeping. [[1]](#ref-1) South Korea followed with binding disclosure duties under the amended Game Industry Promotion Act, effective March 22, 2024, backed by corrective orders and criminal penalties. [[2]](#ref-2)
3. Platform rules. Apple's App Store has required published odds for paid random draws since 2017, and Google Play has an equivalent rule, which is why even games in unregulated markets disclose base rates.

Disclosure has known limits. Published tables cover base rates but often omit dynamics: soft pity ramps are usually undisclosed (HoYoverse's are community-measured), and "consolidated" averages can be published without the underlying formula. Verification of compliance is also hard from outside, which is why South Korea's regime added enforcement teeth after auditing hundreds of non-compliant games in its first months. [[2]](#ref-2)

## References

1. China's loot box probability disclosure regulation (2016 Notice, effective May 2017) (Game Developer): https://www.gamedeveloper.com/game-platforms/online-games-will-be-required-to-disclose-random-loot-box-odds-in-china (accessed 2026-07-09)
2. Mandatory loot box probability disclosure under Korea's Game Industry Promotion Act (effective March 22, 2024) (Kim & Chang): https://www.kimchang.com/en/insights/detail.kc?sch_section=4&idx=29487 (accessed 2026-07-09)
3. CESA guidelines for random-item provision in network games (April 2016) (Computer Entertainment Supplier's Association (Japan)): https://www.cesa.or.jp/action/for-stakeholders/provide-items/ (accessed 2026-07-09)