Why did anakin skywalker became darth vader?

From a storytelling perspective, Anakin’s transformation is tragic. He sought power to protect his family and the galaxy, but his impatience and attachment led to his downfall.

Anakin Skywalker became Darth Vader due to a combination of fear, anger, and manipulation by Emperor Palpatine. His fear of losing loved ones made him vulnerable to the Dark Side.

Check this Star Wars lore page for a detailed analysis: StarWars.com.

He was also frustrated with the Jedi Order’s strict code, believing it limited his potential. Palpatine exploited this discontent to turn him into Darth Vader.

In short, Anakin’s combination of fear, love, and desire for control led him to embrace the Dark Side, thus becoming Darth Vader.

It’s worth noting that the prophecy of the Chosen One added pressure on Anakin, which Palpatine used to manipulate him psychologically.