• Approx. Time for 100%: 30-50 Hours
  
• No Full Replay needed
  
• Cheat codes disable all Achievements except the ones that require Cheats

The guide will be separated into the following sections:

Story Achievements (13)
Collectibles Achievements (6)
Activities Achievements (14)
Combat Achievements (8)
Naval Campaign Achievements (1)
Cheat Code Achievements (4)

There are thirteen story achievements in total, that only require you to play through the game except for the last one:

Complete Sequence I
Complete Sequence II
Complete Sequence III
Complete Sequence IV
Complete Sequence V
Complete Sequence VI
Complete the final glitched memory

We have to give Arno a major childhood trauma to set the path for AC Unity don't we?

Complete Present I
Complete Present II
Complete Present III
Complete Present IV

Complete the game

Achieve 100% synchronization in all main missions

This requires you to complete every main mission and every optional objective within each mission. The memories required for 100% are Sequences 1-6 plus the glitched memory sequence (referred to as "Incomplete Memories" in-game) which also has optional objectives in some missions.

I highly recommend doing each optional objective during your first playthrough, as some story missions are long, and you'll have to replay through the entire mission to get one you missed. As with ACIV: Black Flag, the optional objectives can be obtained across multiple playthroughs of the same mission. So if there are two optional objectives you're having a hard time completing together, you can do one, then replay the mission later and do the second. Compared to previous AC games though, the optional objectives in this game are much easier.

I summarized every achievement that requires you to collect something under this section. You'll find a total of five Achievements that require you to collect something. In doing so you'll eventually visit every location which will also grant you an achievement that I listed at the end of this section.

Repair all computers in Abstergo Entertainment

In the "Present Day" setting, there are 20 computers that need to be repaired. Each repair is a puzzle, and all computers use the same puzzle format. They involve turning rings emitting light rays around a central core to power the core in each section. Once you get the hang of it they're very easy, just focus on the special rings first that have refractive, reflective, transparent, etc., properties.

You won't be able to access all 20 computers until you have level 3 security clearance at the end of the game, so you can either do this as you get kicked back to the present day each time or save it all for the end. If you're having a hard time keeping track of which computers you've done, pull up your tablet, and any computers you haven't repaired will show up on your map on your tablet when you're nearby.

Get the Native Armor

This achievement requires you to find and solve every Native Pillar in the game. They are listed as "mission items" at each location.

You'll typically have to climb your way to each pillar, then solve a very simple mini-puzzle to unlock the pillar. Once you find and solve every Native Pillar, return to Orenda in River Valley to unlock the door, and collect your armor. Said Armor looks quite fancy but doesn't really fit Shay's vibe if you ask me.

Get the Templar Armour

This achievement is a bit of a painis in the ainis to get. Not because it is particulary hard but because it will take you some time. To get the Templar Armour, you'll first have to find all of the Templar Maps in the game. These are listed as "mission items" at each location, and they appear as tiny maps on the world map.

Once you've collected each map, you'll then have to find the treasure location that each map points to, using the coordinates in the corner of each map. Make sure you're on the same world map as the Templar Map (i.e. New York, River Valley, or North Atlantic).

Once you've dug up all of the Templar maps, head to The Sapphire (North Atlantic, northeastern quadrant) to collect the Templar armor and unlock the achievement. I've linked a video with all the locations of the tombs (which only unlock after you collected the matching map).
https://www.youtube.com/watch?v=LrfjWx9Zxos

Collect all Animus Fragments

There are 200 Animus Fragments in total scattered around the world. While a few are in unmarked locations (which will show up on the world map once you free the corresponding fort), the rest show up once you synchronize with the vantage points.

Complete all Native hills and Ice Caves

The Native Hills and Ice Caves show up on your map as round archways, just like in the achievement picture. Capturing the fort/HQ in the area will reveal them all on the map. To "complete" them, you'll have to find the Native Pillar and complete its puzzle. Collecting everything in the area isn't required to complete them, but you'll still need the animus fragments and blueprints for other achievements.

Note: Don't bother exploring the ice caves until you unlock the grenade launcher and shrapnel grenade, as you'll need it to break icicle walls to obtain blueprints (Unlocks at the end of Sequence III).

Visit every location in the game

Each location in the game will initially be marked as a white "?" inside a black square. Once you take control of the fort/HQ of a quadrant, each location will be revealed, and its symbol will be grey. When you've visited a location, the symbol will turn white.

Under this section you'll find every activity related achievement except for the ones that require cheats. Some activities are world events that spawn in certain locations and reset once you fast travel. You can use that to grind certain achievements. To check your progress you can view your statistics ingame. Pause Menu > Options > Statistics. Every achievement related statistic is listed. I listed a total of 14 achievements under this section.

Complete all renovations

You'll have to progress far enough in the main story to unlock renovations. Renovations are at locations all over the map at a majority of the locations. There are a bunch throughout New York, at least one at almost every location in River Valley, and a few throughout the North Atlantic. They require a small amount of metal and wood, and slightly more stone and cloth. Each renovation you complete will increase your income to your bank, so make these a priority as you find them.

Note that you won't have access to renovations in an area until you've captured the Gang HQ/Fort which is controlling that quadrant of the map. So if you go to a location and can't seem to find the renovation, check to make sure you're in control of that quadrant's fort/HQ.

Complete 35 Abstergo Challenges

There are 70 total challenges available, and you'll need to complete at least 65 to unlock all of the cheats required for the next four achievements, so completing 35 should, for the most part, come pretty naturally with gameplay and completing other achievements. Most of the challenges are fairly easy and will unlock simply by playing the game and collecting everything.

Fully Upgrade the Morrigan

There she blows! To fully upgrade the Morrigan and make her the mightiest brig to sail the seven seas you'll need a lot of money and resources. Money will come naturally from completing main missions, side missions, and property income. Resources must be obtained from supply camps, outposts, settlements, and looting ships at sea. The resource you'll require the most is metal which can be obtained in larger quantities by fighting Men-O'-War's in the Northeastern part of the North Atlantic Map or by looting Convoys. (See ).

Loot 20 supply camps

Supply camps are little white carts on the map and randomly spawn in locations around the River Valley map. All you must do to loot a supply camp is get to the chest in the restricted zone and open it, which you must be anonymous to do. The chest will give you some resources. You can simply fast travel to each location where one spawns to grind the achievement.

Loot 20 ship convoys

Ah yes, one of the more grindier achievements... Though I recommend working on this one as early as possible since you get a lot of money and ressources to upgrade the Morrigan.

The first important thing to note is that there are TWO types of convoys that you can loot for this achievement: Royal convoys, which are British ships from the Royal Navy, and French naval convoys. The Royal convoys have a black box on the white sails; the French convoys have a black fleur-de-lis on white sails. Each convoy will be a group of three ships sailing together, and you'll have to loot 20 of these sets of three for the achievement.

The second important thing to note is that you need not actually board every single ship for this achievement, you just need to loot them. That means you can sink every ship as long as you loot the floating cargo when you're done, and you'll still get the achievement. You can check if you got one looted toward the achievement by simples looking up the ingame statistics.

One way to make them spawn is to pay a bartender in a tavern for information. The taverns in the North Atlantic (there are three of them) will guarantee a convoy spawn. This is how the game devs want you to obtain the achievements. But there is another way, since they don't spawn as "random" as advertised.

Here is another method:

1. Fast travel to any viewpoint in New York
2. Fast travel to Anticosti in the northwestern corner of the North Atlantic map.
3. Pull up your map and look for a grouping of three ships, one bigger one sailing slightly in front of the smaller two. They often spawn just south of Anticosti or just northwest. Mark the middle ship and sail towards it and sink it, then loot the cargo.
4. When done, or if there isn't one, fast travel to Fort Louis in the southeastern corner of the North Atlantic. Again check for a trio of ships south of you.
5. When done, or if there isn't one, return to step 1.

And a third time is a charm:

https://www.youtube.com/watch?v=mYFzf38Y3A8

Complete every activity in a single location.

Pretty easy to obtain. Just collect everything you can on the first Island in the story to obtain the achievement.

Capture all Forts

Do what the brits did best: Colonize... or rather help them colonize.
Forts are identical to forts in Black Flag, except much easier this time around. Like previously, to capture a fort, you'll first need to destroy its defenses while on your ship. Then you'll have to infiltrate the fort on foot, kill the captain and usually one or two other objectives. Like with Gang HQs, capturing a fort grants you control over the area and reveals all locations, as well as Uncharted collectibles.

Capture all settlements

Settlements look like little houses with a round roof on your map, and are one-time only captures. When you reach the area of the settlement, you'll be given a couple objectives to complete such as killing the captain, killing snipers, etc. Complete these tasks and the settlement will become a friendly settlement, along with rewarding you with a pretty decent amount of resources. There are only a handful in the game, so capture them all and the achievement is yours.

All legendary Battles completed

Before you try to beat this achievement I strongly recommend to fully upgrade the Morrigan first since especially the last battle is quite tough.

There are four legendary battles total. The first three will show up on the World Map in the North Atlantic region as you gain control of each quadrant of the map by taking over the fort/HQ for that area. They'll show up as big red ships near the edge of the map in each corner. The fourth and final legendary battle, which is listed as an "epic legendary battle," is available after beating the first three and will show up in the southwest corner of the map.

The last battle is by far the hardest: You will first fight the Storm Fortress, which does a great amount of damage from its broadside cannons and sets you on fire with its mortars. Once you get it down below 1/4 of its health, two more Men-O'-War come in to help it. Thankfully the two smaller ones take decent damage from mortar fire and will get destroyed pretty quickly by heavy shot. Focus on finishing off the Storm Fortress first though, as it can inflict heavy damage if you aren't paying attention to it. Then use your standard tactic on the smaller ships to finish the battle.

Continued in the next Section

Destroy 100 Ice Bergs

Just use your cannons to destroy the icebergs. They dismantle once one cannonball hits them. Some even have ressources or Animus Fragments inside of them. You can check the amount of destroyed icebergs in your ingame statistics.

Break through 500 meters of Ice Sheets

Ice sheets are also located in the North Atlantic region of the game. You won't be able to break through ice sheets until you've upgraded your ram at least once.

500 meters may seem like a lot, but you literally just need to break through a strip of ice 2 or 3 times to get the achievement, so this one comes really quick. If you see an ice sheet in the North Atlantic when you're there, head toward it and plow through it a couple times and you should have the achievement right away.

Free 300 British PoW's

Sadly, there is no real "fast" cheese for this one. Fast travel to Gros Morne. (483,-305) Put your controller down and just float there for 10 - 20 min. Don't look at your map or move your ship until that time passed. That will force an Event to occur which usually is a PoW - Convoy. You can also just sail laps through the North Atlantic map. That way you should get some events too.

Keep in mind that damaging the ship will automatically kill some PoWs on board so you will need 4-5 Ships to unlock the achievement.

Harpoon a Narwhal

Narwhals, Narwhals, swimming in the ocean!
Causing a commotion because they are so awesome!
The Narwhal is located in the North Atlantic region of the game, in the northeast quadrant. It will be revealed on your map when you take control of the fort in that area (Fort Baie Rouge). The symbol looks like a swordfish with a long horn on its nose. You don't need a fully upgraded boat for this one but you at least want your harpoon damage up and maybe some extra harpoons if you are not used to the spearfishing mechanic.

For some Nostalgia:
https://www.youtube.com/watch?v=ykwqXuMPsoc

Complete all Assassin interceptions

There are 12 Assassin interceptions in the game with the final one unlocking in Greenwich after you completed the 11 prior ones. They show up in various locations as a pigeon in a black circle on your map. You'll first be tasked with capturing a pigeon (which is holding an assassin contract), then you'll have to find the target of the assassination, and then protect the target by killing the assassins that are after the target.

Some of the contracts take place in highly populated areas, so before accepting the contract, it might be a good idea to kill red and orange arrows in the vicinity of the target so you don't have to worry about going into conflict during the mission. Also, taking on assassins head-on will be difficult and frustrating. Use Eagle Vision to locate them (highlighted in yellow) and either assassinate them (you can simply walk up to them) or shoot them.

Capture All Gang HQs

Gang HQs are similar to Forts in that once you capture one, you control the area and all locations are revealed. They also are represented by the same symbol on the World Map. The Gang HQs are done on foot in a restricted zone controlled by assassins, and you're tasked with killing the leader (an assassin), cutting down the flag, and one other objective typically.

Pretty easy and straightforward. Just do the Stalker - Killer achievement first as the amount of stalkers will lessen the more HQs you control.

Counter-Kill 30 Stalkers
Counter 15 air surprise attacks

Both Achievements require to do more or less the same: Counter kill stalkers. Just that you need to kill 15 of them that jump you from rooftops. They are introduced in Sequence III in New York which also is the perfect time to grind the achievement. They have fixed spawn points and reset if you fast travel to a vantage point.

So getting these achievements is pretty straightforward. Identify a point where they spawn (best done in New York south of Greenwich where you can find a blueprint next to a vantage point. There are two stalkers. One in a bush and one on a roof next to the first. You can walk up and counter kill the first one, then walk up to the roof and counter kill the second. Do that 15 times and you should unlock both achievements.

NOTE: Sometimes Shay stabs them like when he does an assassination. These kills do not count as "Counter-kills". Counter-kills have specific animations. You can check your progress in the ingame statistics.

Counter 20 smoke bombs successfully using a gas mask

Once you get the gas mask in Sequence III you can obtain this achievement. The only enemy to use smoke bombs is the agile enemy of the assassin faction (orange coloured). Wait for them to toss a bomb, press the prompted button and wait for the bomb to go off. It should then count towards the achievement.

Survive a Reverse-Boarding

A reverse-boarding can happen in this game if an enemy ship rams you and your health is low enough. Then the enemies will board your ship. You'll then be given essentially the same objectives as a normal boarding (e.g. "kill 10 enemies"). Complete the objectives, and this will survive the reverse-boarding, as well as give you the enemy ship's resources.

This is more likely to happen naturally in the game early on, when your ship is weak and you're being attacked. A good way to get this to happen later in the game if you haven't gotten it naturally is to raise your Wanted level. When the hunters attack you, they will always be Assassin ships, and some are likely to ram you and board you.

Complete an Outpost without getting detected

Outpost icons on the map show up as a symbol for an entire location, and they look like a ranch house with a straight sloped roof. In an Outpost, you'll be tasked with infiltrating, looting a key from a key holder, looting the stash with that key, and then escaping. Some outposts may have as many as three key holders and stashes to loot. To get this achievement, you'll have to complete all objectives without entering conflict.

Naturally to make this achievement easier, you'll want to try on an outpost with only one key holder and stash. Waiting til later in the game will make this easier, when you have berserk darts/grenades and sleep darts/grenades.

Outposts do reset so even if you fail its not a big deal.

Hit 5 enemies with the berserk grenade (at the same time)
Put 5 enemies to sleep with the sleep grenade (at the same time)

You can do both achievements at almost the same time.
First of all you need the grenade launcher which you get at the end of Sequence III as previously mentioned.
The easiest way to get five enemies together is to fast travel to one of the locations in River Valley that has groups of 5 enemies walking together on patrol with a captain in charge. You'll notice these as they are surrounded by a red restricted area circle as they move. Wait til they stop at the end of their patrol (or you can try leading them with your grenade), and then fire a sleep grenade to put all five to sleep. Once they're all asleep, switch to a berserk grenade and fire that to make them all go berserk.

Complete 17 story missions in the Naval Campaign

The Naval Campaign is pretty similar to the fleet missions from AC Black Flag except this time you don't have a companion app to do the missions while you are offline. So keep track of the mission times while you are playing.
They also unlock in seven sections which require story progression.

The good news is that you only need to complete 17/33 to unlock the achievement though completing the rest completes an abstergo challenge and earns you an admirals uniform along the way as well as some other stuff.

You will need at least one Men-O'-War for the extra storage capacity on later missions so once you can take them on go and get one. Preferably on a higher level.

Sink 10 ships in North Atlantic without dying while only the HUNTED cheat is active.
Sink 10 ships in North Atlantic without dying while only the ENDURANCE cheat is active.

For this achievement, you'll want to have your ship fully upgraded, or at least the mortars, hull and round shot, since you'll need to survive while destroying ships over and over. Don't worry though, if you're fully upgraded, the achievement easy peasy lemon squeezy.

The following can be done two times for each cheat:

Fast travel to Fort Louis in the southeast corner of the North Atlantic map. Pull up your map, and south of you you'll see a bunch of red ships on your map. They will all be gun boats, schooners and brigs. If your mortars are fully upgraded, one well-placed shot will take out each ship, including the brigs. Sail toward them, and right before you engage them, turn on the cheat. Sail around using your mortars to sink ships from a distance until the achievement unlocks. The hunters will get progressively higher as you destroy ships, so if you can avoid the first hunter, you should be able to take out the ten ships required for the achievement before the second wanted level of hunter shows up to attack you.

Take over 10 large supply camps while only the VETERANS cheat is active.

This one is easy since dying does NOT reset the achievement, and the game still saves with this cheat on. So fast travel from location to location in River Valley, picking ones that are closest to the supply camps (indicated by a white cart on your map). There should be 3-5 supply camps present on your map at any given time, so you shouldn't ever have to go to a Tavern to find one. (which you of course can do if you can't find any.)

You can either approach the chest stealthily, or since dying doesn't matter, rush the chest and fight everyone off. Make use of smoke bombs during fights and berserk darts to clear areas. This one will take a little time but isn't difficult at all.

Kill 30 guards without dying while only the ENDURANCE cheat is active.

This one is really easy, since you can do it all without entering in conflict. Fast travel to Halifax in the North Atlantic. There are 11 guards. Assassinate them all, double assassinating each pair together. You should be able to kill them all without entering conflict. When done, fast travel back to the viewpoint in Halifax and all the enemies will respawn. Repeat until the achievement unlocks, then turn off the cheat.