On the Fallout Wiki, find the release date and main character for the original *Fallout* game. Then, for *Fallout: New Vegas*, identify the primary factions involved in the climactic Second Battle of Hoover Dam.
Navigate to fallout.fandom.com. On the *Fallout* game page, locate the 'Release date' in the 'Development information' section. On the *Fallout* game page, identify the name of the protagonist. Use the search bar to find and navigate to the 'Fallout: New Vegas' page. On the 'Fallout: New Vegas' page, locate the 'Contents' section. Click on the 'Story' link within the 'Contents' section. Within the 'Story' section, click on the 'Endings' link. Identify the major factions involved in the Second Battle of Hoover Dam from the 'Endings' section.
State the release date of the original *Fallout* game as October 10, 1997. State the name of the protagonist of the original *Fallout* game as the Vault Dweller. State that the major factions clashing at the Second Battle of Hoover Dam in *Fallout: New Vegas* are the New California Republic (NCR) and Caesar's Legion.