Lol at bundlestars for removing the most valuable game in the bundle and then lower the price with 0.30€.

They removed the only game I wanted from the bundle so I am skipping this one.

This is bullshit, what if Ihad traded some of those keys, damn, im hoping for atleast a small refund, I bought 4 bundles

Was going to buy this bundle, but now I'm not, probably wont pick up anything from bundle stars anymore either way.

First the usual $1 = €1 crap, then they remove the best game, and they reduce the price by $0.50 in the USA, but only €0.20 in the EU?
No way I'd buy this bundle after such a shitty behaviour. See you next time, Bundle Stars!

How exactly do you get this personalized discount code?
It's not in the order confirmation. Will I get a separate email?

I hope that in the beggining of the week they make some sort of anouncement about this, What happened, compensation to harm ones ..

Additional info regarding the 5% Discount Code:

According to the Bundle Stars' newsletter sent today, the code can be obtained until 8am (BST) 24th August 2016.

The issue regarding invalidated keys for Star Ruler 2 appear to have been solved, check this thread by user BlueDahlia for more info:
https://www.steamgifts.com/discussion/hmfHu/request-your-replacement-key-for-star-ruler-2-now

i have the "key already used" Problem with the "Star Ruler 2"-key too :(
Support hasn´t responded after over 2 days

Just got an email that lays out the details for getting a replacement key. It was not in response to a specific support request, but was sent to all purchasers of the original bundle:

Are you having trouble redeeming your Star Ruler 2 Steam key?
Please note: If you have already redeemed your Star Ruler 2 key successfully, your game will not be affected and it will remain in your Steam library. Plus you can safely skip this email.

Due to an unfortunate misunderstanding between Bundle Stars and the game’s developer, Blind Mind Studios, some customers have been unable to redeem Star Ruler 2 keys from the original Killer Bundle 8. We have been working diligently with the developer for several days to resolve this communication issue and prevent any of our customers from losing out.

If you receive a “duplicate key” message when you try to redeem your Star Ruler 2 key, then please accept our sincere apologies. Your Steam key was deactivated but you are eligible for a replacement. To request a working key for the game, you can visit http://bstars.co/support. Please include the following information in your message:

• Your Killer Bundle 8 Order Number
  (the 24-digit code on your Order Confirmation email)

• Your duplicate Star Ruler 2 Steam key
  (Your old inactive key will be deactivated and you receive a new, working Star Ruler 2 Steam key)

If you are eligible, please allow up to two working days for your key to be delivered.

We aren't able to process your payment using your PayPal account at this time. Please go back to merchant and try using a different payment method.

What should I do?

Wow... sorry to dig up an old thread, but just read through the SR2 discussion. People are quite emotional, which is understandable, and some are dumb--resorting to twisting words and name calling. I mean it sucks for all parties, but blaming the developer, and then when the solution comes around blaming the developer again while praising BundleStars, when it also seems quite possible the eventual solution was something like what the developers were working towards since the beginning, is stupid, At least there is no basis to assume otherwise, and I feel bad for them.