| Version | Date | Description |
| 1.0.0 | 29 Apr 2009 | Original version. |
| 1.0.1 | 6 Jun 2009 | Bugfix: Fixed behaviour when prices are written with dashes (5,--€). |
| 1.1.0 | 12 Jun 2009 | Enhancement: Added support for tiered EU prices, configurable VAT on US prices, and an option for disabling UK prices. |
| 1.1.1 | 14 Jul 2009 | Bugfix: Server side change to fix incompatibility with an update in Google Finance's HTML code. |
| 1.1.2 | 11 Nov 2009 | Bugfix: Added a browser cookie that enables the script to work on games that use age verification. Removed references to Tier 3, as it is no longer in use according to SteamUnpowered. Added link to license in the metadata block. Added @match keys to the metadata block according to Google Chrome recommendation. Added various other metadata. |
| 1.1.3 | 14 Feb 2010 | Added AU prices thanks to contribution from user andydev. (issue 8) |
| 1.1.4 | 25 Jul 2010 | Fixed compatibility with new Steam store (issue 12) |
| 1.2.0 | 31 Jul 2010 | Enhancement: Option for showing "$XX.XX More/Less" instead of percentages (issue 2). Bugfix for issue 15. Both contributed by user matt.peveler (issue 16). Also a bugfix for issue 14. |