There's a thread on Something Awful's LP forum for Battletech. If you really like it then I honestly suggest you give the thread a read. It's called "Let's All Play Battletech and Rewrite Inner Sphere History." To know how much it's diverged from the canon...
they're called the Draconis Suns now.
Anyway, I should write up a little on the events of Battletech. Let's start with...
The Star-League Era!Four and a half hundred years before the Fourth Succession War was even thought of, there was an alliance that ruled the entire Inner Sphere. Composed of the Terran Hegemony that was in charge of the Terra System, the Great Houses of the Inner Sphere (Marik, Steiner, etc.) and the states of the Periphery, the Star League was a complete amagamation of every major and nearly every minor faction of the Inner Sphere in the 2500's. It was considered by a majority of the Inner Sphere to be the golden age of human civilization, and this sentiment stayed present even half a millennium after the Star League's collapse.
Engineered by the Terran Hegemony, Capellan Confederation and the Free Worlds League, the Star League slowly received the signage and backing of the other three houses. The Periphery joined the Star League eventually as well, but only after a series of vicious battles had forced the alliances that dotted the outskirts of the IS to concede.
These battles had been fought by the Star League Defence Force. The reason I mention this is because the SLDF become VERY important later on.
The general incompetence of the House Cameron, leaders of the Terran Hegemony, came to a head when Simon Cameron, the House Lord at the time, had not only failed to force a cease-fire between the FedSuns and the Draconis Combine, but also failed in his drives to bring peace. The straw that broke the camel's back had been the appointment of Richard Cameron II, a mere child. Fed up with the continuing failures of the Star League, the other five houses of the Inner Sphere went to Terra, and appointed the commanding officer of the SLDF to become Cameron's Regent and Protector. The Commanding Officer was a General Aleksandr Kerensky.
After countless years of the Amaris family supporting Richard Cameron through corruption, the leader of the Star League found the monarch of the Rim Worlds Republic, Stefan Amaris to be a close friend of his. Through this, Cameron ordered the withdrawal of all SLDF units from the Periphery, leaving the RWR free to use the former SLDF-owned bases and fortresses to use for their own gains.
It didn't take long for another civil war to break out in the Inner Sphere. With Richard being persuaded by Amaris that everyone except the Rim Worlds were against him, he had released an order that all House armies were to be disbanded. It was thanks to Kerensky that this order was instead annulled. In a final move against the other houses, Stefan Amaris persuaded Richard Cameron that the Rim Worlds Republic should protect the Terran Hegemony. Not knowing any better, Cameron accepted. As was almost expected of Amaris, he travelled to Terra, and killed Richard, along with every other member of the Cameron family. With them eliminated, Stefan saw fit to claim power to the Star League, proceeding to remove any trace of the League that he could. With Kerensky slowly taking over the Rim Worlds, he began to capture the planets closest to Terra.
It was on the date of the 23rd of January, 2777 that the SLDF slowly advanced to Earth, capturing all planets along the way, after one long bloody battle - a battle that left ten million people dead. It took two years to execute Stefan Amaris and his family once it was discovered just what happened to the Camerons.
Afterwards, the five remaining house lords stripped Aleksandr Kerensky of his title of Protector, and began their bickering over who should be the rightful ruler over the Star League.
After the year 2781, Aleksandr took 80% of the remaining SLDF, and left the Inner Sphere, never to be heard from again.
With Kerensky's departure, whatever remained of the Star League finally crumbled, leaving the Inner Sphere controlled mainly by the Five Houses. Because of this, we have had
the Succession Wars.Tune in next time for our next era, the Fourth Succession War!