It's the second time for this game having the price increased. Hopefully won't be a third when it's out of early access / in development.
It is still 24,99€ in Montenegro.
But that's Euros, not Dollars. Here is €24,99 / $30.33.
Everywhere I look they use 1€=1$ ratio. It is wrong, but Steam, Gog, Fanatical, Epic Games, Humble Bundle do it all the time.