Please read below!

I'll deliver the Steam keys to the winners by Steam chat - the reasons for this with official Support posts can be found here
As I'm going to make a lot of giveaways, please consider adding me on Steam and sending me a chat message, even if I appear Offline, linking the giveaway you won to help me fetch the key in a fast and efficient way.
I'll still try to add you if you won't do so in 24/48 hours as to leave plenty of time for the 7 days limit, but the method above will save the both of us a lot of time.

I'm setting the levels this high even for bundled games for a variety of reasons - giving those who contribute more a better chance to actually win something and avoiding/spotting bots, for instance.
The duration will typically be rather short, the reason for this is because I try to pick days and times where I'll be able to be online when the giveaway ends and deliver the keys as soon as possible.
Last but not least, please don't thank me: whenever I do giveaways, I do a lot of them at once and I'd rather avoid spam; instead, just type "IDDQD" or "IDKFA" once. Could be a way to spot some bots. :P
On the other hand polite communication and promptness in activation and marking as received will be very much appreciated and will possibly win you a place in a whitelist I'm building for more insteresting, non-bundled games.
May the odds favour those who took the time to read this far!