Assassin's Creed Origins

=== Setting ===
The player takes on the role of an Egyptian Medjay named Bayek of Siwa and his wife Aya, as they work to protect the people of Ptolemaic Egypt during a time of widespread upheaval. The Pharaoh, Ptolemy XIII, struggles to maintain his rule while harboring ambitions of expanding his kingdom. His sister, the recently deposed Cleopatra, begins marshaling loyalist forces to launch a counter-coup against Ptolemy. Additionally, incursions into the Kingdom by the Roman Republic under the command of Julius Caesar lead to fears of an imminent invasion. Bayek's role as a Medjay brings him and Aya into contact with the secretive forces manipulating these events and into forming the Hidden Ones, the precursor organization to the Assassin Brotherhood. The story is followed in the modern day by Layla Hassan, an Abstergo researcher who covertly reads Bayek and Aya's memories to uncover the origins of the Assassins and secure a senior position in Abstergo's Animus project. In experiencing Bayek's memories, Layla may encounter a series of ancient structures built by the First Civilization. Each contains a message that alludes to Layla playing a pivotal role in an upcoming apocalyptic event.

Plot

In 2017, Layla Hassan, a researcher for Abstergo Industries, is tasked with retrieving an artifact in Egypt on their behalf. Instead, she finds a tomb containing the mummified body of Bayek of Siwa. Hoping to find information that would secure her a position in the company's Animus Project, Layla covertly obtains a DNA sample and reads Bayek's memories using a modified Animus device. In 49 BC, Bayek, a Medjay charged with protecting the Siwa Oasis, is abducted along with his son Khemu by a group of masked men and taken to an underground vault in the Temple of Amun. They give Bayek a dormant Apple of Eden and demand that he use it to open the vault. Khemu helps Bayek escape, but while struggling with one of the masked men, Bayek inadvertently kills Khemu.
One year later, Bayek has exiled himself to track down the five masked men and take his revenge. After eliminating two targets, Bayek heads for Alexandria to meet his wife Aya. Aya reveals that she has also killed two masked men, leaving only one target. Bayek identifies the Royal Scribe Eudoros as the last target and assassinates him, but is disturbed by Eudoros' last words, which imply there are more masked men. Realising Aya should be buried in the same tomb, Layla locates her mummy and inputs her DNA into the Animus, which synchronises her memories with Bayek's. Aya directs Bayek to her friend Apollodorus for more information. Apollodorus introduces him to Cleopatra, who confirms that the masked men are members of the Order of the Ancients, which ousted her from the throne and seeks to control Egypt using Ptolemy as their puppet.
Cleopatra gives Bayek four new targets which he tracks them down and assassinates, while Aya commands a fleet to negotiate an alliance with the Roman general Pompey. Bayek receives a letter from Aya explaining there are more Order members at large, including members of Ptolemy's royal guard, and assumes that Cleopatra is using him to eliminate her rivals. Having failed to report in, Abstergo sends a team to kill Layla, but she kills them first and returns to the Animus. Aya joins Bayek to meet Pompey, but they find him assassinated by Order member Lucius Septimius. Cleopatra decides to try with Pompey's rival Julius Caesar, who is in negotiation with Ptolemy, and sneaks into the palace rolled in a carpet to meet him.
Bayek and Aya break into the tomb of Alexander the Great so Cleopatra can show Caesar, impressing him and securing his support in the war against Ptolemy. In the midst of the fighting, Bayek kills Ptolemy's regent Pothinus, an Order member, but is restrained from killing Septimius by Caesar on the ground that he's Roman. Meanwhile, Aya draws her bow to kill Ptolemy, but holds back and watches as his boat is attacked by crocodiles, causing him to fall into the Nile and drown. Cleopatra takes the throne as Pharaoh and cuts ties with Bayek and Aya, while Septimius becomes an advisor to Caesar. Bayek realizes that Cleopatra and Caesar have now allied themselves with the Order, and gathers his allies to form a secret brotherhood to fight the Order and defend the people's free will.
Bayek and Aya return to investigate Alexander's tomb, where they find a mortally wounded Apollodorus who warns them that Caesar's lieutenant Flavius Metellus is the leader of the Order and took the Apple and Alexander's Staff of Eden. Returning to Siwa, they find that Flavius and Septimius have used the Apple and Staff to open the Vault, which contains a map with the locations of more Pieces of Eden. Bayek tracks Flavius to Cyrene, where the latter has used the Apple to enthrall the population. He kills Flavius, avenging Khemu's death, and returns to Aya. Aya reveals that she is going to Rome to fight the Order's influence there and has joined the conspiracy of Brutus and Cassius to assassinate Caesar. The pair bid farewell and form the Hidden Ones, the foundation of the Assassin Brotherhood, swearing to protect the world from the shadows.
Layla is awoken by William Miles, who invites her to join the Assassins for her own protection. Although declining to join the Assassins, Layla agrees to go to Alexandria with him. Aya sails to Rome and confronts and kills Septimius before infiltrating the Roman Senate, where she takes the first hit on Caesar before other senators follow suit. Later, she meets Cleopatra and warns her to be a fair ruler, or she will return to assassinate her. Afterward, Bayek and Aya, now calling herself Amunet, begin recruiting and training other Hidden Ones as they build the Brotherhood in Egypt and Rome, respectively.

The Hidden Ones

In 38 BC, several years after the foundation of the Hidden Ones, Bayek receives a letter from Tahira, the leader of their bureau in the Sinai, who requests his help as the region is being invaded by Rome and the local Hidden Ones are struggling to handle the situation. Upon arrival, Bayek meets rebel leader Gamilat, whom the Hidden Ones have allied with to fight the Romans. Together with Tahira, they devise a plan to lure out General Rufio, the leader of the Roman invasion and a member of the Order of the Ancients, by assassinating his three lieutenants. Bayek does so, but upon returning to the Hidden One bureau, the hideout is attacked by the Romans, who capture Bayek and Tahira. The former is rescued by Amunet, who has also come to the Sinai to investigate the situation. The two then free Tahira and another captive Hidden One, but Tahira soon dies from injuries she has received.
Once Rufio arrives with his fleet, Bayek and Amunet help Gamilat's rebels to defend a village before Bayek infiltrates Rufio's ship and assassinates him. However, he is disturbed by Rufio's final words, which imply that the Order is an ideology, not a group, and therefore immortal. As Bayek returns to Amunet, she informs of Gamilat's actions of planting his men among innocent villagers, knowing that the Romans would kill indiscriminately, thus creating martyrs to motivate more people to join the rebellion. Bayek confronts Gamilat and kills him when he defends his actions as a necessary evil. Afterwards, realizing the importance of a Creed to serve as a moral guideline for the Hidden Ones and to ensure their survival over time, Bayek and Amunet address their apprentices and create their first tenet: the prohibition of harming innocent lives. Bayek is unsure if they have done good, but Amunet re-assures him and the two share one final moment together before Amunet returns to Rome.

The Curse of the Pharaohs

In 34 BC, Bayek receives a letter from Amunet informing him of a disturbance in Thebes, which she believes is a sign of another Piece of Eden. Deciding to investigate, Bayek travels to the city and discovers the disturbance to be a "curse" which has seemingly resurrected several past pharaohs as undead spirits to haunt the region. After defeating the spirit of Nefertiti, Bayek heads to Luxor to meet Amunet's contact Merti, who informs of stolen relics being sold on the black market and directs him to the High Priestess and God's Wife of Amun Isidora for more information.
Investigating the market, Bayek meets the historian Tahemet, who gives him an invitation for an auction of an artifact stolen from Nefertiti's tomb. Bayek discovers that the artifact has already been taken by the thief Sutekh, who intends to return it to the tomb, and convinces Sutekh to let him return it instead. Inside the tomb, Bayek finds a mysterious portal that seemingly transports him to Aaru, where he again encounters and defeats Nefertiti's spirit. Meeting with Isidora, she directs Bayek to investigate a cult worshipping the heretic pharaoh Akhenaten. In the process, Bayek learns that Akhenaten once held the Piece of Eden he seeks and finds another portal taking him to Aten, where he must overcome the pharaoh's spirit.
After further investigation, Bayek learns from Tahemet of a ritual where the Piece of Eden is used and how to put Ramesses II to rest. Upon venturing into the Heb Sed and defeating Ramesses' spirit, Bayek investigates the ritual and learns that the Piece of Eden has been passed into the care of the priests of Amun, meaning it was in Isidora's possession all along. Learning that she has used the artifact to unleash the "curse" as retribution for her mother's murder by tomb robbers, Bayek travels to the tomb of Tutankhamun to confront Isidora and recover the Piece of Eden. However, Isidora refuses to stand down and uses the artifact to "transport" Bayek to the Duat, where he is confronted by Tutankhamun's spirit. After defeating it, Bayek kills Isidora and gives the Piece of Eden to Sutekh, trusting him to hide it somewhere it will never be found.