: You can purchase it on the Steam Store . It currently lists for $29.99 , though its lowest recorded price has been as low as $3.74 during major sales.
If you are looking for the best legal price, you can use comparison tools to find sales: Rivals of Aether Free Download (v21.08.2022)
is not a free-to-play game and requires a purchase for the full version. While some external sites may claim to offer "free downloads" for specific versions (like v21.08.2022), these are often unofficial and may carry security risks. : You can purchase it on the Steam Store