These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Arc Fatigue: Ezio's story took place from games 2 through 4 of the main series (Supposedly so there were games coming out while development of 3 was underway). By comparison, every other main character has had only headlined one (The Kenway family members, Arno and Shay) or two.note Alta´r in 1 and Revelations (though he also headlined minor games) and Aveline in Liberation and DLC for Black Flag.
Archive Panic: The series' convoluted ongoing Myth Arc and its regular annual new releases has led new fans to be Locked Out of the Loop with the massive troves of backstory and Info Dump needed to get up to speed, as of now the series has Four Numbered Sequels but 6 Main Console games, not including PSP, Nintendo DS and PlayStation Vita releases, or for that matter the novelizations by Oliver Bowden, one of which Assassin's Creed: Forsaken has attained canonical status, or the Graphic Novels. The main games are also very long, which means that if you want to start on the series as a newbie you have a busy month and a half ahead of you.
Black Flag averts this- outside of knowing the basics of the Myth Arc (Assassins Vs Templars, Animus, Juno), you can go into the game and have a relatively easy time keeping up- as long as you don't play the Aveline DLC on Playstation.
One of the main ones at least among video game websites is the tendency of the series since Brotherhood to release one new Assassin's Creed a year and divide work between multiple studios which to critics makes the series stale and repetitive.
Also the series becoming one revolving around Historical tourism rather than a complete present day Assassins vs Templars conflict, which is relegated to the backstory and lore rather than gameplay.
A great number of fans are frustrated at Ubisoft abandoning Connor after the Vocal Minority backlash of Assassins Creed III despite the fact that the game was the bestselling title of the franchise and that most of the flaws of the game (hurried release, bugs, new engine) are unfairly scapegoated on the protagonist. The fact that Ubisoft develops the backstory of the supporting cast of the game and even gives closure to minor players in Assassin's Creed: Rogue while simply not mentioning anything to do with him, despite the fact that the similarly divisive Altair got closure is often cited.
It Was His Sled: The original trailers and information did their best to hide the existence of Desmond and the modern storyline, except for a few out-of-place "glitches" (now recognizable as elements of the Animus). A rather fancy trick, given the fact that Desmond's storyline is of greater overall importance.
Desmond or any part of the modern plot was only shown in two trailers ("Black Room" and "Gameplay" for Revelations) and the press-releases close to never talk about it. The twist can be still held up under the right circumstances.
The idea of the Templars trying to take over the world, while the Hashashin try to stop them has been done before in the Broken Sword series.
Sidetracked by the Gold Saucer: Despite the games focus on unearthing a particular set of memories of a character or a moment in history, the gameplay encourages sidequests as a means of furthering synchronization. This leads to all kinds of Headscratchers like in Assassin's Creed III where in the Present the earth is on the brink of an upcoming solar flare, Desmond should ostensibly have little interest or time to the many sidequests his ancestor has access to.
On a wider note, this is the principal accusation leveled by Minerva on the Assassins vs. Templar conflict, noting that they spent far too much time searching for Pieces of Eden to control or keep out of hands than using said gifts to find the Grand Temple and solve the crisis together.
This becomes Harsher in Hindsight where at the beginning of Assassin's Creed: Brotherhood, after discussing Ezio's vision at the vault, the Assassins debate on their next course, with Mario showing interest in the mysterious 'Desmond' while Ezio is focused on consolidating the Brotherhood and Machiavelli is obsessed with defeating their surviving enemies who he notes, accurately, are too dangerous to ignore altogether. In other words, the Assassins throughout history were often diverted from their real responsibilities.
Stop Helping Me!: In the platforming sequences, the camera will often helpfully pan over to demonstrate your intended jump, but throws off your directional controls since they are relative to the camera, not the character.
They Wasted a Perfectly Good Character: To some extent, Desmond Miles was disliked as an Audience Surrogate and a generic protagonist but these same critics, including Ben Croshaw disliked the fact, at least after the first and second games, that the present day story was ultimately an Excuse Plot for the historical portion and eventually a Shaggy Dog Story since all the focus on bleeding effect and Desmond absorbing his ancestors abilities via a sacrifice he was tricked into making ultimately didn't pan out and was eventually removed altogether.
Villain Decay: Zigzagged throughout the games, the Templars can be portrayed villains that make a legitimate point with their goals, such as with Al Mualim in the original, but apart from the Revolution era ones in the 3rd game, the later games simply portray them as power hungry raving lunatics that want to cause The End of the World as We Know It to solidify control when they already rule the world.
That said population control/reduction is one of their long term aims. Their involvement in both World Wars has members express a desire for as much people on both sides to die as possible. What better way to shape the world as you see fit than to start from scratch.
The Woobie: Many characters in the Franchise and extended story:
Subject 16. Everything about Subject 16. The Trauma Conga Line of the Bleeding Effect that he undergoes could put many of the entries on that page to shame. The revelations in later entries, namely that the visions he experienced were not only his ancestor memories but "calculations", visions of possible futures, only makes his ordeal even more agonizing, making him the true Mad Prophet of the series. His struggle to hold on to his sanity against the clutter of memories, Juno messages and false futures is nothing short of heroic, especially after his betrayal by Lucy Stillman. His ignominious death, the fact that even fellow Assassins - Shaun and Rebecca - call him Subject 16 even after his death only makes his life a vast Shaggy Dog Story, leave alone that he was in the end a puppet for Juno to con Desmond into sacrificing himself to release her.
Daniel Cross is acknowledged and discussed by Rebecca as such. His backstory, constant Mind Rape via bleeding effect and the fact that he's an engineered Tyke Bomb by Abstergo to destroy the Assassins as a "sleeper agent" including as we learn his Implied Love Interest Hannah Mueller only makes his relative innocence horrific. The backstory of his ancestor Nikolai Orelov and Innokenti, as well as the remarkable survival of his great Aunt Anna in present-day Russia is probably the only happy part of that tragedy.
Desmond Miles ultimately. A decent young man who chafed under his father's dubious parenting skills only to run away and somehow make it as a bartender in New York with an active social life, only to be taken against his will by Abstergo, undergo the unpleasant and bitter realization that his Jerk Ass father was right about the Templars all along and the cherry on top is his death, via Batman Gambit by Juno. Even after that, his body is unceremoniously desecrated by Abstergo, who harvest his DNA into Sample 17 and use their acquisition to make crappy video games about his Pirate Ancestors.
Jennifer Scott, the daughter of Edward Kenway and Caroline Scott. We see her as the cute and innocent 8 year old girl, delighted to see her cool father and his cool ship for the first time. Then we see that she's become a famous society beauty who still honours her mother by keeping her Family Name over Edward's. But then you read Assassin's Creed: Forsaken and find out what happened to her, namely that her father had engaged her into a marriage she did not want with Reginald Birch, who was not only a Templar but killed Edward and then kidnapped her and sold her into sex slavery. When Haytham rescues her years later, she's bitter and angry at her father, full of hated towards Reginald and appalled that Haytham is serving the Templars. She ends up becoming a bitter old spinster, estranged from her brother, who unbeknownst to her would soon be dead at her nephew's hands.