Add custom download sources to Steam game pages instantly
Seamlessly integrates with Steam's interface using native styling. Looks and feels like it belongs there.
Add unlimited JSON sources with your own download links. Complete control over your content.
Intelligent title matching automatically finds games even with version numbers and DLC info.
Add multiple sources at once with the bulk import feature. Save time and effort.
Clean, modern interface with smooth animations. Progressive loading shows results as they arrive.
All sources stored locally in your browser. No data leaves your machine ever.
Download and install ApolloSource for Chrome or Firefox. Quick and easy setup in seconds.
Click the 🚀 button on any Steam page or use the extension popup to add URLs to JSON files containing game download info.
Visit any game page on store.steampowered.com and the extension works automatically.
If your sources contain that game, you'll see an "ApolloSource" dropdown button. Click it to see all available downloads!
1. Download the extension files
chrome://extensions/1. Download the extension files
about:debugging#/runtime/this-firefoxYour JSON files should follow this simple structure:
Yes! The extension only reads JSON files from URLs you provide. It doesn't modify Steam, send data anywhere, or access any sensitive information. Everything stays local in your browser.
Make sure the game title in your JSON matches (or is similar to) the title on Steam. The extension uses fuzzy matching, but very different titles might not match. Check the browser console (F12) for debugging info.
Absolutely! Just share the URL to your JSON file with others. They can add it to their extension and instantly access all your downloads.
There's no limit! Add as many sources as you need. The extension will check all of them and show downloads from any that have matching games.
The extension needs internet to fetch your JSON sources. Once loaded, the sources are cached in your browser until you refresh the page.
ApolloSource works on all Chromium-based browsers (Chrome, Edge, Brave, Opera) and Firefox. The extension uses standard web APIs that are widely supported.