Why the game at steam is cheaper than other sites
In fancy fish it is 15 $ but in steam it is only (450 rupees my country currency) ie only 6$ at steam.
Aground is set to $15USD on all storefronts, but some stores (like Steam) enable regional pricing by default. That means that the cost of the game in some countries is higher or lower than $15USD based on the country/economy (and I trust Steam to set a fair relative price). Itch.io does not have regional pricing, so it's the same in all countries.