UPDATE 16/5/22: A spokesperson for Salt and Sacrifice developer Ska Studios has provided the following response to Eurogamer this afternoon:
"Salt and Sacrifice's pricing was always intended to be the same on all storefronts at launch," a spokesperson told Eurogamer today. "As such, storefront pricing was adjusted in various regions ahead of the game's global PC launch at 9am PT on Tuesday, 10th May 2022. The price has not changed on any storefront or in any region following launch, nor did any platform holder demand any changes to the game's original pricing.
"Developers Ska Studios and Devoured Studios apologise for any confusion regarding the price correction prior to Salt and Sacrifice's launch and as a two-person development team, remain focused on supporting the game following a successful launch."