Subnautica

Subnautica is an adventure game from Unknown Worlds Entertainment, and the Steam store also tags it as Indie. You have crash-landed on an alien ocean planet with only a Life Pod, and the only way to go is down. Early on, the clock is always ticking, because you need to find water and food while working out how to explore safely.

The core loop is gather, craft, build and venture deeper. You collect resources from the ocean around you, then craft diving gear, lights, habitat modules and submersibles. Each trip further out reaches rarer materials, which unlock more advanced items. Back at your bases on the sea floor, you store resources, park vehicles and replenish oxygen, while managing hull integrity as depth and pressure increase.

The setting is a living ocean that feels different by day and by night. Sunlit coral reefs and kelp forests give way to treacherous deep-sea trenches, lava fields, bioluminescent underwater rivers and winding cave systems below the sea bed. Predators roam the water, and the store page notes that areas safe in daylight become dangerous after dark. A fresh fish can lure a threat away, or you can simply swim as fast as you can.

What sets it apart is the mystery running alongside the survival. The store description asks what caused your crash, what is infecting the sea life and who built the structures scattered across the ocean. You can also build a PRAWN Suit for extreme depth and heat and modify it with mining drills, torpedo launchers, propulsion cannons and grappling hooks.

• Explore a vast open underwater world that ranges from sunlit coral reefs to deep-sea trenches, lava fields and bioluminescent rivers.
• Craft diving gear, lights, habitat modules and submersibles from resources gathered in the ocean around you.
• Build underwater habitats on the sea floor, choosing layouts and components while managing hull integrity as pressure increases.
• Pilot a PRAWN Suit that can be modified with mining drills, torpedo launchers, propulsion cannons and grappling hooks.
• Use the ecosystem to your advantage by luring threats with fresh fish or outswimming roaming predators.
• Explore cave systems below the sea bed, where you must watch oxygen levels and avoid threats lurking in the darkness.

Subnautica holds the Steam label Overwhelmingly Positive, with 97 percent of its reviews positive across hundreds of thousands of reviews. That combination is a strong signal, because a high percentage backed by a volume this large suggests the broad player base has been consistently pleased with the game.

Steam calculates review labels from the share of positive reviews and the total number of reviews, so a title with a volume like this gives a reliable read. Smaller games with only a few hundred reviews can swing sharply from a handful of reactions, so their labels deserve more caution. A high percentage tells you what most people think, not whether the game matches your taste, so check the recent and all-time review mix on the Steam page before deciding.

All prices in this section are Taiwan Steam store prices in NT$. Subnautica's regular price is NT$ 899, and the current price is NT$ 224, a 75 percent discount. That current price is also the lowest we have recorded, and it was already the price on the first day we logged the game.

Our record shows the game is discounted often, and the deepest cut we logged matches the current 75 percent. As far as our tracking shows, the game was never free to keep, and we have not recorded any free-to-keep promotion for it. Our price record is still short, so this verdict is tentative, but the current price sits at our recorded low.

Based on that, the current price looks attractive for a title with this review profile, especially with the discount this deep. Because our history is limited, we cannot tell whether it will dip further, so if you can wait, the wishlist notifications are a sensible middle path. If you want it now, NT$ 224 is the best price we have logged.

1. Sign in to Steam on the website or in the desktop client, then open the Subnautica store page.
2. Compare the current Taiwan price of NT$ 224 with the regular NT$ 899 so you know how much you are saving.
3. Click Add to Cart and complete the purchase with your preferred payment method, or add the game to your wishlist if you want to wait.
4. Open your wishlist and turn on Steam's wishlist sale notifications so you hear about future price drops.
5. Check back here for the price trend before deciding when to buy.

Traditional Chinese is among the supported languages listed for Subnautica, and English is supported too, with full audio support noted for English. The store page lists many other languages, so check it for the exact options before you buy. The store page also includes a flashing-lights warning, which is worth reading if you are sensitive to bright effects. All prices here are Taiwan-region Steam prices in NT$ and may differ in other regions. Free and discount promotions can end at any time, so check the official Steam page before you buy.