Nubs! Arena has a special free to add promo on their store page for the launch day but you may have to go to their store page to see it. This promo ends May 16, 13:00 UTC so get it asap.
Go to the store page directly. Look for "Get Nubs!" under "Buy Nubs!" and click the button to add it to your account.
https://store.steampowered.com/app/2337860/Nubs_Arena/
There are also some ingame skins to redeem via code, I will post those in the comment section.
Can be added to ASF clients with !addlicense asf s/1316946
Can be added in browsers/mobile with javascript:AddFreeLicense(1316946)
We welcome everyone to join our discord[discord.gg]. We are more active there in finding giveaways, small or large, and there are daily raffles in which you can participate.