If you’ve ever watched a Jacksepticeye playthrough, you know he brings equal parts chaotic energy, genuine surprise, and unfiltered frustration to every game he touches. His recent jacksepticeye subnautica 2 series is no exception, racking up over 12 million views across 8 episodes as he navigates the icy, alien oceans of 4546B’s frozen sector. I binged the entire run twice, taking notes on everything from his funniest reactions to the surprisingly smart survival tricks he pulled out when he was seconds away from dying of hypothermia. This guide breaks down the best parts of his playthrough, plus actionable tips you can steal for your own Subnautica 2 save, no matter if you’re playing on casual or hard mode.
Standout Moments From the Jacksepticeye Subnautica 2 Playthrough
Jack’s run starts the same way most Subnautica runs do: with him screaming at every small fish that swims past his escape pod, and forgetting to pick up essential materials like titanium for his first base. But the real standout moments come when he stumbles on major story beats no one warned him about. The first big shock hit in episode 3, when he accidentally wandered into the Ice Worm nesting grounds without a reinforced snow suit. His reaction, a high-pitched scream followed by 30 seconds of him fumbling to switch to his grappling hook, has been turned into more than 1000 TikTok edits at this point. If you’ve watched any other jacksepticeye subnautica 2 clips online, you’ve probably seen that clip already. Another fan favorite moment comes in episode 6, when he spent 20 minutes trying to befriend a baby pengwing, only for it to be snatched by a shadow leviathan right in front of him. He refused to progress the story for another 15 minutes while he mourned, which is exactly the kind of unscripted charm that makes his playthroughs so fun to watch.
Common Gameplay Mistakes Jack Made (And How You Can Skip Them)
For all his years of gaming experience, Jack still makes the same silly mistakes most new Subnautica 2 players make. I tracked the most common ones that cost him hours of progress, and put together simple fixes so you don’t have to repeat them:
- Forgetting to craft a spare oxygen tank before deep dives: Jack died three separate times in the first two episodes because he ran out of air 20 meters from the surface. Always craft two standard oxygen tanks before you explore any cave system or dive below 100 meters, even if you think you’ll only be gone a few minutes.
- Ignoring hypothermia warnings in the arctic surface areas: He lost two full inventory loads of rare materials because he brushed off the first hypothermia alert and got stuck in a blizzard far from his base. Keep a portable heat pack in your hot bar at all times when you’re exploring above the ice, and head for shelter as soon as you see the first warning pop up.
- Building his first base too far from key resource nodes: Jack built his first base right next to a beautiful thermal vent, only to realize he had to travel 15 minutes every time he needed copper or lithium. Pick a base spot within 2 minutes of both shallow water resources and arctic surface access to cut down on travel time for the first 10 hours of gameplay.
None of these mistakes are game breaking, but they can add a lot of unnecessary frustration to your first run, especially if you’re playing on hard mode where death means losing all your progress. Jack laughed off most of his deaths, but you could tell he was ready to quit the game entirely after losing a full load of rare materials to hypothermia for the third time.
Hidden Easter Eggs Jack Spotted That Most Players Miss
Jack has a surprisingly sharp eye for small details, even when he’s screaming at a leviathan that’s chasing him. He found three rare easter eggs in his run that less than 10% of Subnautica 2 players have unlocked, according to official achievement stats. The first one is a hidden audio log from the original Subnautica’s protagonist, Ryley Robinson, tucked in a sunken supply crate 300 meters below the ice in the western kelp forest. The log reveals Ryley returned to 4546B to study the planet’s recovering ecosystems after the Kharaa bacterium was eradicated. The second easter egg is a replica of Jack’s iconic green hat hidden in a cave behind a breakable ice wall, a clear nod to him and other content creators who helped make the first Subnautica such a massive hit. He was so shocked when he found it he dropped his controller, and you can hear him laughing for a full minute after he picks it up. It’s one of the most talked about moments from the jacksepticeye subnautica 2 series, and for good reason. The third easter egg is a hidden terminal that plays a clip of the original Subnautica launch trailer if you input the right code, which Jack stumbled on by accident when he was typing random numbers to try to unlock a supply crate.
None of these easter eggs give you any gameplay advantages, but they add a lot of charm to the world, and finding them feels like a fun little reward for taking the time to explore off the main story path. I’ve played through Subnautica 2 twice before watching Jack’s run, and I had no idea the green hat easter egg even existed.
Pro Survival Tips From Jack’s Hard Mode Attempt
After he beat the game on standard mode, Jack went back for a hard mode run that tested every survival skill he had. He shared a ton of useful tips during that run that work for any difficulty level, even if you’re not playing with permadeath turned on. The first tip he swears by is to prioritize building the scanner room as early as possible. He used to skip it entirely in his first Subnautica runs, but in Subnautica 2 the scanner room can track both rare resources and dangerous leviathan locations, which cuts down on both travel time and unexpected deaths. You can even upgrade it to scan for specific crafting materials, so you don’t have to wander around caves for hours looking for a single piece of nickel to build your depth module. Another tip he picked up is to always keep a stun rifle and a grappling hook on your hot bar when you’re exploring above the ice. Ice worms can kill you in two hits, but a well-timed stun will give you enough time to grapple away to safety before they can attack again. He learned this the hard way after dying 5 times in a row to the same ice worm while he was trying to collect a rare plant sample for a side quest. He also recommends you don’t rush the main story. He tried to beat the game in under 10 hours for a challenge in his third run, and he missed half the side content and world building that makes Subnautica 2 such a special game. A lot of the best character moments and lore reveals are tucked away in optional side quests and hidden audio logs, so you’ll miss most of the game’s heart if you just run straight to the final boss. Take your time exploring, collect random audio logs, and mess around with building different base designs before you head for the endgame. You’ll get way more enjoyment out of the game that way, even if it takes you twice as long to beat.
At the end of the day, the jacksepticeye subnautica 2 series works so well because it’s equal parts entertainment and useful insight for new and returning players alike. You don’t have to copy every choice he made in his run, but stealing his best survival tricks and keeping an eye out for the easter eggs he found will make your own playthrough a lot more fun, and a lot less frustrating. If you haven’t watched the series yet, it’s well worth the time, even if you’ve already beaten Subnautica 2 three times like I have. You’ll probably pick up a new trick or two you never thought of before, and you’ll get a good laugh out of his chaotic reactions to all the game’s biggest surprises.
