Disclaimer
I do not own any canon or cut concepts from Sonic the Hedgehog, Mass Effect, Gears of War, Metroid, Half-Life, Marathon, or Halo. They are solely owned separately by Sega, Epic Games, BioWare, Nintendo, Valve, and Bungie. I do own most non-canon/fanon concepts unless contradicted during the Disclaimer. I also own all custom concepts unless I say something in the Disclaimer. If they appear anywhere else, it is purely coincidence.
Author's Notes
This is mostly a Mass Effect-Sonic X-Over. The mixing of Gears of War, Metroid, Half-Life, Marathon, and Halo are used for mostly items, races, and factions, and there will be no references to their games and will coexist with the ME timeline. The story will start out with a timeline following the ending of ME2 to the start of the story. The Story will begin next chapter. Enjoy!
The Mobian Effect
Timeline
2185- End of Mass Effect 2.
2186- The Krogan population starts to slowly increase, suggesting that their kind may not be doomed to extinction after all.
February 17, 2186- The Raloi are granted an Embassy in the Citadel, officially joining the Citadel.
August 28, 2186- Humans discover a race known as the Locust are discovered after attempting to colonize a planet known as Sera which has near earth like conditions.
September 14, 2186- Attempts to raise the Locust proves to be a success and the Locust become a Citadel Race.
December 25, 2186- A violent race of alien slavers known as the Pfhor attacked several human colonies, resulting in the outrage of the humans who want the Pfhor dead.
January 5, 2187- After continued attacks from the Pfhor, the Citadel officially declares war against them, starting the Citadel-Pfhor War.
January 23 2187- Artifacts of a mysterious race known as the Jjaro are found on the colony of Terra Nova. The artifacts are brought to the Citadel in over fear of the Pfhor raiding the colony and stealing the relics.
February 4 2187- Using the artifacts found on Terra Nova, the scientists of the Citadel are able to construct the M-10 Phoenix Sniper Rifle, a prototype weapon which utilizes particle beam accelerator technology obtained, giving them somewhat of an edge against the Pfhor.
February 9, 2187- A taskforce of Pfhor ships arrive at the Citadel. Although the battle was a victory for the Citadel, they also suffered heavy losses.
February 14, 2187- When a human colony ship makes a blind jump through an unknown relay escaping another Pfhor attack, the humans encounter the Sangheili, a race who has learned more about the Jjaro and who has its hands on a treasure trove of the ancient relics they left behind.
February 28, 2187- With much reasoning, the Sangheili join the Citadel Counsel, bringing the races that follow them, the Mgalekgolo, Huragok, and Unggoy, with them.
March 14, 2187- With the Sangheili defending the Citadel from the entire Pfhor fleet, the Citadel and the Pfhor begins a ceasefire that will take place for the next few years,
March 15, 2187- Work begins on a memorial statue commemorating the Citadel's gratitude for the Sangheili
April 1, 2187- When exploring a recently found Mass Relay, a Volus ship is encountered by a Kig-Yar vessel. When the two ships begin conversing with each other, the Kig-Yar want to start a trade rout with the Citadel, making the Kig-Yar get a good off to a good start with relations with the Citadel.
April 14, 2187- The Kig-Yar sets up an embassy at the Citadel.
July 4, 2187- When life signatures are detected inside a gas giant known as Xen are detected by the Turians, the Turians discover the Vortigaunts. The Turians raise the Vortigaunts because of the amazing use of Element Zero based powers without any implants. They are quickly accepted into the counsel.
August 5, 2190: The Hanar discovers the Jiralhanae. The Hanar convince the Jiralhanae to worship the Protheans as they do. The Hanar proceed to raise them.
November 5, 2190: The Jiralhanae becomes a Citadel Race.
November 30, 2190: The Yanme'e are discovered by the Asari and are promptly brought to the Citadel due to their interest in technology.
December 31, 2190: The Sangheili Monument is completed.
March 14, 2191: The unofficial ceasefire between the Citadel and the Pfhor is broken when the Pfhor begins to terrorize more human colonies.
March 31, 2191: Present Date.
