How many classes are in star wars the old republic?

Star Wars: The Old Republic is a massively multiplayer online role‑playing game set shortly after a fragile peace between the Sith Empire and the Galactic Republic. Developed by BioWare Austin with support from BioWare Edmonton, the game launched in December 2011 for Windows. Players choose to align with either the Republic or the Sith Empire, and each faction offers four unique classes, totaling eight classes across the game. Every class follows its own three‑act storyline that advances as the character levels up, providing separate narrative experiences for each role.