Steam terms.

Steam status. This page is a Steam-specific supplement and conditional account-data notice. It does not replace the Terms of Use, Privacy Policy, or Valve's Steam Subscriber Agreement. Where Steam account linking is available, the supported authentication process governs the association.

Steam distribution supplement

This section supplements the Terms of Use and applies only if and when a Chess Mutator build is made available through Steam. This page establishes the terms for Steam distribution when a Chess Mutator build is made available through Steam; it does not by itself announce a release or create a Steam entitlement.

Steam and Chess Mutator accounts

Your Steam account is operated by Valve and remains separate from a Chess Mutator account. Steam authentication, ownership checks, and any association must be validated by a secure server. No Steam account is merged with a mobile-store account merely because the same person uses both. Where automatic account creation or linking is available, the game will present the applicable notice before collection and will use a defined recovery and conflict process.

Where a guest or existing Chess Mutator account is involved, supported conversion may preserve that account; an existing-account conflict requires explicit sign-in and ownership verification. No client-supplied SteamID, automatic duplicate, or unrelated local-cache merge establishes account authority, and no lossless merge is guaranteed.

Licence, ownership, and purchases

A Steam purchase, if offered, gives the personal-use licence and access rights made available through Steam and does not transfer ownership of the Steam account, the Chess Mutator intellectual property, or a mobile-store entitlement. The Steam Subscriber Agreement and Valve's store rules apply to the Steam relationship. Valve operates Steam checkout and refund handling; see the Steam Refund Policy. Mandatory consumer rights remain unaffected.

Progress, achievements, and online service

Cross-platform progression, if enabled, would be server-authoritative and subject to account identity, integrity checks, and conflict handling. It is not a promise of Steam Cloud functionality or a guaranteed lossless merge. Chess Mutator achievements and Steam achievements are separate records; any synchronization requires a released implementation and may be limited by platform rules. Online features may depend on network access, Supabase services, and Steam services, so offline availability is not guaranteed.

Internal Chess Mutator achievement records remain server-authoritative. Steam achievement records are a separate platform record; they cannot establish purchase ownership or Chess Mutator account authority. Where synchronization is enabled, retries and reconciliation may be needed, and an unavailable Steam service may delay or prevent mirroring.

Linking, unlinking, recovery, and support

Linking a Steam identity to a Chess Mutator account is not the same as synchronizing progress. Where unlinking is available, it removes the association and does not by itself delete the Chess Mutator account or Steam account. Account deletion is a separate verified request through the account deletion page; it may remove current account-owned state and cannot delete Valve's Steam records. For help, use Support or [email protected].

Steam account-data notice

Read the Steam account-data notice below before linking or sending Steam data. It is a transparency notice, not a consent request. Any feature that collects or sends Steam data must show this notice at or before the point of collection.

Steam account data: conditional processing boundary

Chess Mutator does not collect Steam account data unless and until a released feature uses Steam authentication, ownership checks, account linking, or synchronization. If such a feature is enabled, the applicable Steam account-data notice must be shown at or before collection; the actual release configuration controls what is processed, by whom, and for how long.

Data processed when Steam functionality is used

When Steam functionality is used, it may process a SteamID, app-ownership or authentication result, a temporary ticket submitted to a secure server for verification, link and unlink metadata, account-recovery events, and platform/progression synchronization records. Steam tickets are sensitive authentication material: they must be sent only over an authenticated server boundary, used for the intended verification, and released or expired after the flow. A released Steam flow must treat tickets as sensitive authentication material: send them only over an authenticated server boundary, use them for the declared verification, avoid raw-ticket persistence, and release or expire them after the flow.

Providers, transfers, and retention

If enabled in a released feature, a Steam flow may involve Valve/Steam for authentication or ownership services and Supabase for the Chess Mutator account and server-authoritative game state. Provider regions, subprocessors, transfer safeguards, and retention periods must be matched to the actual release before Steam data is collected. These documents do not promise Steam Cloud; if it is enabled, its separate storage, synchronization, and deletion behavior must be disclosed before use.

Notice before collection; unlinking and deletion

This section is a transparency notice, not a consent request. This notice must be shown at or before the point of collection. A Steam account-data collection flow must not proceed without it. Where unlinking is available, it removes the Chess Mutator association but does not delete the Chess Mutator account. Account deletion is separate and available through the deletion request page; Valve's Steam account and records are outside that request.

Mobile advertising boundary

Google Mobile Ads and UMP disclosures in this policy describe supported mobile builds and their explicit rewarded-ad flows. They do not establish that a Steam build contains rewarded ads or other ad-based monetization. Any Steam monetization or advertising feature would require a new implementation and an updated disclosure before release.