Was hunting around for the cheapest pre-order for Defiance (release 2nd April) after playing the beta this weekend. Checking the official digital retailers (http://www.defiance.com/en/pre-order/pc/) the cheapest by far is gamazavr.ru by more than 50% from Steam (http://store.steampowered.com/app/224600/) and comes with all the same pre-order bonuses, however the website is region locked so you'll need to use a proxy.
Standard: http://gamazavr.ru/product/14681359/
Deluxe: http://gamazavr.ru/product/14681360/
To purchase follow these steps:
(1) Register here:
https://gamazavr.ru/cabinet/registration/
(2) Wait for email with password and login here:
https://gamazavr.ru/cabinet/
(3) Login with a Russian proxy (plenty of free vpn's on google) to bypass the region check and add to cart
(5) Proceed to checkout but log out of the vpn before putting your credit card information in.
Translator: http://www.bing.com/translator
Note: Codes will be activated through your Trion account (not Steam)
What's the game like?