Springfield Penitentiary

 is the biggest prison in Springfield and unlocks with a quest at Level 19. Upon completion of Springfield Pentitentiary, the player unlocks Snake.

About
The is the main prison in Springfield. Homer was held at Penitentiary after he was framed for committing financial fraud at Ziffcorp. However, Homer was released a day afterwards and replaced with Artie Ziff when he decided to do the right thing and turn himself in. Mr. Burns was also placed in the Penitentiary after it was discovered that he stole the Concert painting, but Homer, Lenny, and Carl busted him out in order to replace Smithers. The was also forced to release all minor offenders due to cutbacks as a result of a major financial crisis.

Regular
Booberella Duffman Fat Tony Gina Vendetti Hans Moleman Kirk Legs Louie Marge Molloy Ned Rev. Lovejoy Sideshow Mel Snake
 * Serve Time for Unlicensed Peanut Vending - 24h
 * Party Down at Springfield Pentitentiary - 8h
 * Run Organized Crime from Prison - 24h
 * Smuggle in Smokes - 8h
 * Do a Stint in Juvie - 24h
 * Deliver Books to Inmates-4h
 * Serve Time - 24h (single use)
 * Take a Break in the Slammer - 4h
 * Take a Break in the Slammer - 4h
 * Teach Art Classes - 6h
 * Bide His Time in Jail - 8h
 * Convert Inmates - 24h
 * Comfort Inmates - 8h
 * Entertain Inmates - 12h
 * Serve Time - 24h

Promo Quest Based
Character Groups

Criminals
 * "Like" Sideshow Bob's Fiend Book Post - 60m

Quest Based
Greta Wolfcastle Lance Murdock Lenny Richard Nixon
 * Witness Hell on Earth - 12h
 * Tour Springfield Penitentiary - 60m
 * Serve Time - 24h
 * Play Piano for the Inmates - 8h

Character Groups

Most Springfieldians
 * Serve Time - 24h

Trivia

 * When someone does a task here, the security lights are working.