I think it's been a thing for around a year. From the guidelines page.

When posting links or content, that content should not force users, encourage users through reward, or primarily exist as a traffic source for users to perform an action for promotional, commercial, or monetary benefit. Such actions include but are not limited to clicking a referral link, liking a Facebook page, following a Twitter account, joining a Steam group, completing a survey, or making a donation. (Please note, in giveaway descriptions we do allow users and developers to link to their related Steam Greenlight, group, and store pages, as well as their social media channels. Users are also able to reference their group giveaways when posting in the Group Recruitment category of our forum.)

That's been awhile now, that's why you see alot less of these giveaway announcements anymore, and normally i wouldn't bother either, but on some occasions, like this being a 20 euro game, i am doing it. Hope it's easy to find for people.

Lost in the Forest, Lost with Dinosaurs and a bunch of Forge of God Dlc's are also free on the site where Demolish is.

The giveaways and site are "legit", it's from the old Rex groups, it's just alot of joining groups and stuff.

Not denying there isn't something shady about having to join 20 groups, but hey it's something free, and your choice if you take it or not. But i gotten a bunch of keys through them, never happened to be once, could have just been an issue with the dev.

That was a beta key:

View attached image.

Yeah not all of them are really necessary to do though, added it to op.

You have to connect your account with twitch on top of the page. and I totally agree on the "stupid site" part.

On top of the page under your avatar, have you clicked link to twitch first?

Good chance it's the Arcane or Occult Raise games.

http://store.steampowered.com/search/?developer=Arcane%20Raise

Alexander Character for Occult raise - I have this already so it told me :)

*Or someone trying to give it away.

It's as real as it is in my library. Actually i was expecting some crap simulation game before i read the reviews, and i was suprised by both it's price and good reviews (though a bunch are troll reviews) but still there are far worse simulation games like it out there.
It does look like a decent game.

That sucks if i had a spare you could have had it. :x

If you have access to more steam accounts, you can hook those up to the same twitch, twitter etc and try for another you'd just have to only to do the steam stuff again on that steam account.

I got a duplicate key as well and sent an email to them. Now I'm waiting for the answer, whatever that may be.

The verify is not needed, but when there are alot of steps it's easy to miss 1 step (or group) especially if someone is new to the site i'd personally recommend might want to verify first, because if you try to grab a key and you missed something it completely reloads the page and you can't tell what you did or didn't.

that leave ~20 tasks from 24 tasks :D

Join group is a must, i can skip twitter but not twitch

That sucks, maybe it reached a bad key batch, I don't know if this giveaway has been going on a month or that this is a refill, ifso they might refill again in a few weeks.
Or what i posted above to tobicapullo, trying with another steam account can work, but yeah takes some work again.

But did you get a working key for Demolish?

https://www.steamgifts.com/go/comment/mT2Urpk

Free DLC are most likely for the Arcane or Occult Raise games. http://store.steampowered.com/search/?developer=Arcane%20Raise

[200853, Dante (Character for Occult RERaise)]

Thanks for this I am trying to chase all these DLC down for these games :)

Still it uses steps which are against the rules.

And thanks i guess. :x

Last one was a christmas avatar, was about time don't you think? :p

And someone else said i should smile more so..