Your library stays in your browser.

Effective 10 October 2026.

Local data

Saved games, recent project launches and your comparison selection use browser localStorage under the radiant: prefix. This site has no account system and does not send these lists to a server. Clear your browser’s site data to remove them. Storage can be unavailable in restricted browsing modes; selections then last only for the session.

Search and shared links

Search filters and comparison selections can appear in the page URL. Anyone you share that URL with can see those parameters. Bookmark lists are not included. Copy-link controls write to your clipboard only when you activate them.

Hosting and external projects

Cloudflare serves this website and may process technical request information to deliver and protect it. Linked games are separate websites with their own storage, accounts and privacy policies. Hosted arcade games load only after you press Play, using our play.radiantoptimizergames.app subdomain. They may store scores locally and load game libraries or fonts from third-party CDNs. Frames do not load automatically.

Analytics and advertising

This version includes no advertising or third-party analytics scripts. If that changes, this page will be updated.

Corrections

The correction form prepares clipboard text locally. It does not submit your input to a server. Review the correction instructions.