Under The Waves: 100% Achievement Guide

Harold152 made a great video showing all the collectible locations

Harold152 made a great video showing all the sticker locations

Harold152 made a great video showing all the crafting recipe locations

You'll get the music box as one of the collectibles. See the video above for its location. Once you've collected it, head to the Life Module crafting room and you'll see the music box on the top shelf on the left. Interact with it to play with it.

Some of the collectibles you find will be in wrecked ships, helicopters, etc. You'll get this when finding all collectibles.

You'll get a lot of logbook entries just from playing the story. By the end of the game you should have a good majority. Get the rest of them by getting all collectibles, crafting recipes, stickers, etc. You can also target landmarks, sharks, whales, etc and scan them for extra logbook entries.

There is a punching bag in the crafting/collectibles room. It has a minigame when you interact with it.

One of the collectibles you find early on will be a guitar. Once you've found it, go to your bedroom and interact with it for the minigame. You can unlock new songs by finding their tapes as collectibles.

Once you've found all the crafting upgrades from the video above, head to the crafting station at the Life Module and craft all upgrades. Coal is one of the harder resources to get. You unlock a really easy method of gathering it later on in the story once you've unlocked the laser - you can use it on oil traces when they start appearing near the end of the game.

Oxygen sticks cost algae and plastic. There is an overabundance of plastic and algae spawns near the vents/pipes, you can see them on the map.

One of the crafting upgrades you find in the video above is solar power. Craft it at the crafting station.

Make sure before you finish each day you complete all the routine missions available.

There are 3 photography missions. You can start them by picking up the camera as soon as you have access to the crafting/collectible room. You can take photos by accessing it in the menu or by switching to it in the bottom right of the HUD.

The rarest one that I've only found in one location is the Whale Shark at the Galleon wreck at X: 483 Y: -1695. You'll also get the Like The Wreck Of The Hesperus achievement.

When inside Moon, change the camera so its one of the two angles inside. You'll see a button prompt that will trigger the sea shanty.

On Day 2, you'll be tasked to investigate some communication problems. The communication antenna is located at X: 1728 Y: -716. Interact with it for this achievement.

You can get this by simply interacting with the TV at any point at the Life Module. Sit on the seat, and keep interacting with the TV to change channels.

Follow the main story until you've unlocked mines and the shipping containers that you need to check on are marked on the map. Place a mine on the container at X: 1170 Y: -920 to blow it open and a squid will come out.

You can find repair kits in some locations or craft them on the Life Module. Drive Moon into some rock to do some damage then use the repair kit in the bottom right of the HUD.

Instead of repairing Moon, keep driving it into rocks until it's destroyed and you die :( You will reload from the previous save.

From Day 15, you will encounter the leech enemies. Simply swim into them and let them kill you.

When you use an oxygen stick to refill the oxygen bar, Stan will throw it away next to him. You can pick them back up to get some plastic back.

Drive Moon all the way to the surface. It's quite a nice view above the waves.

Follow the main story until you've unlocked the laser for Moon. Once you've got it, drive to the oil traces on the map and use the laser on them. You can get a lot of coal from doing this which will be important for crafting everything.

When doing the photography missions, you'll encounter a blue whale. Target it and scan it.

The galleon is located at X: 483 Y: -1695. There is a Whale Shark and a collectible here as well.