Steam price badge

A free browser extension and userscript that shows the lowest listed key price from the stores SuperDuperBundle compares right on a game's Steam store page, with a link to the full comparison.

A Steam store page for Marvel's Spider-Man Remastered with the badge above the purchase box: $20.51, lowest listed US price at GameSeal, 8 stores compared, and a Compare prices button. — The badge on a Steam game page (prices change; this one was taken on 21 October 2026).

Install

Chrome Web Store: in review
Firefox Add-ons: in review
Microsoft Edge Add-ons: in review
Opera Add-ons: coming soon
Userscript (Tampermonkey, Violentmonkey, Greasemonkey): install from Greasy Fork

What it shows

The lowest listed price for the game's PC key, the store, where the key activates and its region, how many stores were compared, and when the price was checked.
"Compare prices" opens the game's page on SuperDuperBundle, where every offer is listed.
Prices are US-dollar listed prices as each store shows them; stores set fees and the final total at checkout.
If Steam already shows you a US-dollar price at or below ours (regional pricing or a Steam sale), the badge stays hidden.

Privacy

It sends only the Steam app ID of the page you are on to SuperDuperBundle. No account, no tracking, no browsing history; it never changes links, cookies or checkout pages. Details: privacy policy. SuperDuperBundle may earn a commission when you buy through store links on its website; it never changes the price you pay or the order of offers (affiliate disclosure).

Source code

Open source (MIT): github.com/superduperbundle/game-price-api. It uses our free Game Price API. Problems or ideas: open an issue there.