In my case, I bought Thimbleweed Park last year. Maybe the giveaway was expanded to previous owners as well?
Hmm.. it seems so. That would be a sensible move, since previous owners have paid a higher price for the game.
Yeap! I got it way back when it first came out and was given the DLC as well. Was just about to post it after I noticed it recently well :)
Free Thimbleweed DLC to owners of Thimbleweed prior to 24th June 2019
Also updates to preorder freebies that I just noticed
Warlocks 2: Godslayers - Soundtrack for all pre-orders before 18th July 2019
Cyberpunk 2077 - 30% discount off CD PROJEKT RED Merchandise Store for pre-orders before 17th June 2019
Judgement Apocalypse Survival Simulation - Desert Edition - Free soundtrack for all purchases till 20th June 2019
Children of Morta - Free soundtrack for all pre-orders
Edit: 1st July 2019, seems like Thimbleweed DLC was a mistake. It has been removed from all our accounts.