Mercenary King - Early Acess

So, I got a spare key to steam for Mercenary King, it works this very moment and gives you two days early access before it launches on steam. This key is a steam key which will give you access to the game on steam too. Sadly, I did not find it in the game tab at create a giveaway. I'd kinda defeat the purpose to give it first after the early access is over if its added by then. Is there anyway to work around this?