The nerve of some people

On one side, rules are rules.

On the other Relicta... lol! Serious reaching to be asking for something above and beyond.

Spend a couple days checking trade groups, and i'm sure you can find a super cheap code or tradeable copy of Relicta.

asked me for XCOM2\Gotham knights level games and not one from my $hit list as he called it..

What a twat 😅
I would suggest give him nothing at all and just take the Not received. It's not like it matters anyhow.

My advice - do not offer a substitution game (this can lead to problem with activation checks later) - go to trading sites (steamtrades or barter.vg) and change one of your games for another copy of the game the winner got.

Like, you won this, you get this. No bargaining!

you have done so many give, the only thing u loose for a not received is a give slot. tell him to eat a dick.

Rn in my country XCOM 2 is cheaper than Relicta...

So they've asked you (or you offered) them a key for a different game after the key you've provided didn't work just so they'd allow you to delete the giveaway? Honestly just don't do it, having a few "not received" feedbacks won't really affect your account at all, best to just let it go.

There is a useful thread to avoid trouble of that kind https://www.steamgifts.com/discussion/Dgscb/a-list-of-games-whose-unredeemed-keys-were-revoked

If a key doesn't work, you either provide a new working key for that game or ask the winner if she/he agrees to a deletion of the giveaway. You do not give away a different game for compensation!

This only results in a lot of work for Support, because
A) if you give the winner a different game and she/he ticks received, you have both broken the rules. You for providing a different game than the one you promised to give away and the winner for not having the game the giveaway was for on her/his account, which can lead to suspension.
B) The winner still has every right to tick "Not received", even if she/he activated the key for the different game, because you didn't provide them with the game the giveaway was for.

Edit: I just had to file a support ticket for one of your latest winners for not activating six (!) wins.

If you look up Relicta and XCOM 2 on gg.deals, you'll find they're not so far apart in value. Asking for Gotham Knights was either nervy, or maybe a joke if we give the benefit of the doubt. Either way, the person was out of line for calling your offered list a $h1t-list.

As others mentioned, though, the GA should be deleted, not marked as received, or the 'winner' would be suspected of selling the key they said they won. For any key acknowledged as received, that title must be activated in the winner's Steam account.

Good on you for all the generosity. Don't lose faith!!

I'd advise putting at least a level 2 or 3 limit on your future giveaways, that can help avoid people with such behaviour. Also, as others said, if you were to offer a key for another game request to delete the giveaway too.

Request a deletion of said GA and blacklist the w(h)inner.

I'd take the not received, and not give them anything; too much of a pain and all you lose is one giveaway slot. Smack a level restriction on your giveaways to reduce future frustrations.

I will ask you to remove link and name of giveaway that was won. We don't want here witch hunts, and you just put them as a shooting target.

If key you gave to winner did not work you should either find replacement, accept not received, or (if winner agrees) ask for giveaway deletion. You should never give them some other game and ask to mark GA as received. It can lead to them being suspended. And if we find out creator delivered wrong game and asked GA to be marked as received - we will adjust feedback to not received retroactively.

When should I mark a gift I won as "Received" or "Not Received"?
You should only mark a gift as "Received" when you have both (i) received the exact game described in the giveaway, and (ii) activated that game on the Steam account you used during registration. In all other instances you should mark the gift as "Not Received" one week after the giveaway has ended.