Spire Codex is now on Overwolf. Get the in-game overlay with live card lookups and one-click run uploads. Learn more →Last updated: July 20, 2026
Spire Codex (“the Service”) is a fan-made database, API, and overlay for Slay the Spire 2. This page describes what we collect when you use the website (spire-codex.com), the public API, the embeddable widgets, and the Overwolf overlay.
The website shows ads served by NitroPay (GG Software, Ltd). To serve and measure ads, NitroPay and its advertising partners may process: your IP address, approximate (city-level) location derived from it, device and browser information, and cookies or similar identifiers used to cap ad frequency, detect fraud, and, where you have consented, personalize ads.
If you are in the EEA, UK, or Switzerland, a consent dialog appears before any personalized advertising happens. Personalized ads run only if you opt in; declining shows non-personalized ads instead. You can change your answer at any time using the Manage Consent link in the footer of every page, which reopens the consent dialog with the full list of advertising partners and purposes.
If you are a California resident, some of this ad-related data sharing may be considered a “sale” or “sharing” of personal information under the CCPA/CPRA. You can opt out at any time using the Do Not Sell My Personal Information link in the footer of every page. Opting out stops the sale/sharing of your data for personalized advertising; you will still see ads, just not personalized ones. We do not knowingly sell or share the personal information of anyone under 16.
Ads appear only on the website. The API, widgets, desktop app, and overlay carry no advertising.
Run data, leaderboard entries, and submitted feedback are retained indefinitely so the community archive remains complete. Server logs are kept for up to 30 days.
Outside of the advertising described above, we do not sell or rent any data. Submitted runs and persona names are public by design, they appear on leaderboards and on the public API at /api/runs/list. Treat anything you submit as public.
Sub-processors used by the Service: Steam (OpenID sign-in and persona lookup), GitHub (issue tracking for feedback), Discord (real-time feedback notifications), Ko-fi (donations, optional), NitroPay (advertising), Google (analytics).
To request deletion of your submitted runs, leaderboard entries, or feedback, email im@ptrlrd.com or open an issue on GitHub. Include the SteamID or run hash you’d like removed. We process requests within a reasonable time and confirm by reply.
California residents have the right to know what personal information we collect (described above), the right to request deletion, the right to opt out of the sale or sharing of personal information (the footer link, or the Global Privacy Control signal, which we honor), and the right not to be discriminated against for exercising any of these rights. To exercise the know or delete rights, email im@ptrlrd.com. We verify requests by asking you to demonstrate control of the SteamID or run hashes involved, and respond within 45 days.
The Service is not directed to children under 13. We do not knowingly collect data from children. If you believe a child has submitted data to the Service, contact us and we will remove it.
We may update this policy as the Service evolves. Material changes will be noted by updating the “Last updated” date at the top of this page. Continued use of the Service after a change indicates acceptance of the revised policy.
Questions, concerns, or deletion requests: im@ptrlrd.com.
Spire Codex is an independent fan project and is not affiliated with, endorsed by, or sponsored by Mega Crit Games. See the Terms of Service for use restrictions and disclaimers.