With today’s Collector’s Edition Announcement, I think it’s best to help everyone distinguish the differences between all four versions of The Sims 3 Showtime. I don’t think we’ve seen this many versions since… Sims 2? Anyway, here ya go!
This standard version of the game is not yet available. This Standard Non Limited, Non Collector Edition will be available after the game is released. This version will not come with any bonus features that we are aware of right now.
The Sims 3 Plus Showtime includes both The Sims 3 Base Game and The Sims 3 Showtime expansion pack in one. This versions does NOT include any Limited Edition or Katy Perry bonuses.
Those who pre-order now will be automatically upgraded to a special Limited Edition version, which features the Ultimate Stage venue. Players can place this fully customisable venue in their world and will be able to use it as an additional stage for their Sims to perform on, complete with in-game props, backgrounds, lights and special effects. This bonus venue is available through pre-order and while supplies last. See here for more information and screens.
Those who pre-order the Katy Perry Collector’s Edition will be automatically receive the special Sims 3 Showtime Limited Edition content, which features the Ultimate Stage venue,plus the exclusive Katy Perry Bonus Content. The Katy Perry Content includes an Ultimate Stage bonus venue, iconic Katy Perry themed items, and an exclusive poster. This iconic content includes fashions, a guitar, a hairstyle and various Katy Perry themed stage props. See here for more info and screens.
❗ Note that this version is $10 more expensive than the Limited Edition.