TERMS · UPDATED 12 SEPTEMBER 2026

A simulation, for play and learning.

Scope

ChestSimulator is an independent fan project. The arcade and probability lab provide entertainment and educational demonstrations. Neither is an official Riot service or a prediction of a specific League of Legends opening.

Virtual items only

Keys, essence, tiers, collection entries and other rewards have no real-world monetary value. They cannot be purchased, withdrawn, transferred or redeemed for Riot content. The site does not request Riot credentials.

Model limitations

Arcade tiers, probabilities, costs and progression are custom rules. Artwork does not establish official rarity or current store value. Catalog data may be incomplete or from an older patch. The lab is reproducible simulated output, not measured player activity. See the model documentation.

Saved progress

Progress is stored locally. We cannot recover a save after you clear browser data, reset progress or lose access to the device. An update aims to preserve saves but the service is provided without a promise of uninterrupted availability.

Responsible use and corrections

Do not use the service to impersonate others, submit abusive content to the project’s support channel or interfere with the service. Report defects or inaccurate claims through Contact.

Intellectual property

League of Legends and related characters, images and trademarks are owned by Riot Games. The project is not endorsed or sponsored by Riot. These terms do not grant ownership of third-party assets or override their owners’ rights. See Riot’s fan-project policy.