It is located on Baytree Canyon Road in Vinewood Hills, Los Santos County, west of the Vinewood Sign. It is based on the real life Greek Theatre in Los Angeles. Its upper deck has wooden tables and chairs and alfresco heaters.
Sorry Commode and Anguished Cornhole are set to perform in the theater as part of the project 'Rock Da House'. Hip hop artist Clay "PG" Jackson and Liberty City duo The Blue Brothers are also stated to be performing.
- Sisyphus was a king in the Greek Mythology, and is referenced in the tale of Orpheus and Eurydice.
- Two women listening to music devices can sometimes be found talking to each other on the stage.
- Although intended to be based upon a different facility, the seating arrangements at the Sisyphus Theatre more closely resemble that of the Vinewood Bowl and its real-world counterpart, the Hollywood Bowl. In particular, the green podiums on either side of the audience seating, with their video screens, are a notable feature of the Hollywood Bowl, not the Greek Theatre.
- Vinewood Bowl, another outdoor theater in Los Santos.