There are region restrictions for this game, not everyone will be able to activate your key...

Shadow Gambit: The Cursed Crew

• Central and South America get this sub, hover for countries where it can be activated
• SEA regions get this sub, hover for countries where it can be activated
• RU + CIS get this sub, hover for countries where it can be activated
• Other regions not included above, including EU most likely get this sub, hover for countries where it cannot be activated

Source (with working links) : https://www.steamgifts.com/discussion/qtyJf/humble-bundle-may-2025-humble-choice-66

In my opinion, it would be better to delete this giveaway before it ends, and then recreate it properly with the correct region restrictions. That way, you can avoid the hassle caused by a winner who can't activate the key — but feel free to deal with it the way you prefer. :)

thanks!

Thank you for the chance!

Thanks!

Thanks!!!

Thanks (x2) hope to win it wthog ^_^

Thank you

Thanks for the giveaway

Thank you

Thank you :D

Thanks, you legend

Thank u sooo much

Thanks for the giveaway!

thanks

thnx

Thank you!

Cannot activate the key, likely due to regional restrictions as Melliuc referring to.
The message on steam is:
Sorry, but this product is not available for purchase in this country. Your product key has not been redeemed.