Subnautica
Subnautica costs $29.99 USD on Steam (price as of July 2026). To pay as little as possible, compare that against the live offers from key marketplaces Instant Gaming and G2A below: their prices change constantly, so we link straight to each store instead of showing a number that goes stale.
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What is Subnautica?
What platforms is Subnautica on?
Subnautica is out on PC. On this page we compare PC digital keys, ready to activate in your Steam library.
How to get Subnautica at the best price?
Looking for Subnautica cheap? The trick is to compare the adventure deal between Steam and key resellers like Instant Gaming and G2A. In its mid-range price bracket, comparing stores usually gets you a worthwhile saving. With a Metacritic score of 90, it's one of the best-rated in its category, so locking in a good price is doubly worth it. Since it launched in 2018, it shows up in sales often, especially on third-party keys. Always make sure the store is trustworthy and the key is valid for your region before paying.
