1. Collectibles
1.1. All Nostradamus Enigmas
1.2. All Sync Points

2. Miscellaneous
2.1. Guillotined – Kill an enemy with a lift counterweight.
2.2. Room With A View – Enjoy the view of Paris from Arno’s balcony.
2.3. Patron of the Arts – Watch a play in the Café Théâtre.
2.4. And Stay Down! – Perform a ground execution.

3. Dead Kings DLC (Downloadable Content)
3.1. Defender of Franciade – Complete Suger’s Legacy and recover the Eagle of Suger.

From the Past
Unlock the Medieval Armor in the Café Théâtre.
There are a total of 18 Nostradamus Enigmas in Assassin’s Creed Unity. Solving all of them will unlock the Medieval Armor in the Café Théâtre. Equipping this armor will then give you the “From the Past” trophy or achievement.
To complete the Enigmas you must find all the hidden symbols (they can only be seen with eagle vision). Some of them are really well hidden. They are usually in the same district where the mission starts. The mission start is always marked on the map. Just the Enigma symbols don’t show up on the map.
After locating an Enigma symbol you will also receive a clue for the next one.

– Mercurius –

– Gemini –

– Pisces –

– Saturnus –

– Mars –

– Sagittarius –

– Cancer –

– Jupiter –

– Taurus –

– Libra –

– Venus –

– Aries –

– Virgo –

– Leo –

– Capricorn –

– Scorpio –

– Aquarius –

– Terra –

– Armor Room Puzzles & Unlocking the Medieval Armor –

I Got Skills
Unlock all Skills.
There are a total of 40 sync point collectibles in Assassin’s Creed Unity. They can only be found during Co-Op missions and will give you an upgrade point each. These points can be used to buy new skills. They are also needed for the “I Got Skills” trophy or achievement.
They are not marked on the map by default. The only way to make them appear on the map is to use eagle vision when you are near one of them.

Each co-op mission also gives you 2-3 skill points just for completing it. The rest of the skills can be obtained from story missions. Only after completing all missions and sync points you can fully upgrade everything!
You can see how many sync points you have found by going to the “Progress Tracker” in the pause menu. Then select “Co-Op Missions” and it will show how many there are in every mission and how many you have found.

The starting points of all co-op missions are marked on the map. You can play them solo (private match) or with other players in a public match. If you want to do it solo you should get some good gear first. Some areas are heavily guarded and others are locked (always keep lockpicks in your inventory to open doors).

FULL PLAYLIST (ALL CO-OP MISSIONS):

Guillotined
Kill an enemy with a lift counterweight.
Lifts can be found all around the open world. Running towards them will automatically make you cut the rope that activates the counterweight. If an enemy is standing below the lift it will kill him and unlock the trophy / achievement for you. Simply get detected, look for such a lift, and wait for the enemies to catch up. Lure them below the lift and then cut the rope.
The place in this video works great because it has two lifts in one place and there are always two guards spawning nearby. So if it doesn’t work on the first try you still have another lift in the same spot. You can also fast travel to the other end of the map and then come back to reset the enemies and lifts.

Room With A View
Enjoy the view of Paris from Arno’s balcony.
In DNA Sequence 5, Memory 1 you will unlock the Café Théâtre (your hideout). It will now be marked on the map in the Île Saint-Louis district of Paris. Simply climb up the balcony. Let the animation play out when Arno looks over the balcony and the trophy / achievement will unlock.

Patron of the Arts
Watch a play in the Café Théâtre.
The Café Théâtre unlocks in sequence 5. Come back later when it’s daytime and walk up to the left side of the stage (the stage is closed at night). A little animation will make Arno cross his arms. Stay in this pose and watch an entire play from start to finish without walking away. When the play is over you must walk away and the trophy / achievement will unlock.

You do not have to buy any renovations, don’t need to do any of the Café Théâtre missions and don’t need to own any other clubs. The plays will always take place at daytime, no matter if you renovated the place or not.

And Stay Down!
Perform a ground execution.
This can only be done after beating sequence 9! You have to complete sequence 9 to unlock the Ground Execution ability.
The following 3 skills must be bought: One-Handed Weapon Master + Ground Execution + Staggering Strike.
Now equip a one-handed sword and use the Staggering Strike to throw an enemy to the ground. When he is on the ground you must hold down the attack button. On PS4 you press and hold: X, X, Square. On Xbox One you press and hold: A, A, X.

VERY IMPORTANT: Make sure you have the “One-Handed Weapon Master” skill. Without it you will only do a normal ground execution, but not the one that is needed for the trophy and achievement. Having this ability will make the kill animation look different and do an instant kill. Also make sure you hold down the buttons for 1-2 seconds instead of pressing them for just a short moment.

Defender of Franciade
Complete Suger’s Legacy and recover the Eagle of Suger.
There are a total of 7 Suger’s Legacy Riddles in the “Dead Kings” DLC of Assassin’s Creed Unity. Completing all of them will earn you the “Defender Of Franciade” trophy / achievement and unlock a very powerful sword called Eagle of Suger.
Suger’s Legacy Riddles are very similar to the Nostradamus Enigmas in the main game. In them you have to find hidden symbols in the town of Franciade. The first two Suger Legacy quests are part of the story and cannot be missed. They take place after completing Sequence 13, Memory 3 and unlock the starting points of the other 5 quests on your world map.

To play the DLC and access the town of Franciade you have to use the carriage near the Café Théâtre in Paris.