Timeline

This is the  of all events, level updates, and promotionals associated with The Simpsons: Tapped Out since its release in 2012.

2012
February
 * February 17 - The Simpsons: Tapped Out is released in Sweden. This was the first release of the game.
 * February 21 - The Simpsons: Tapped Out is released in Canada for iOS.
 * February 29 - The Simpsons: Tapped Out is released in Australia and the United Kingdom for iOS.

March
 * March 1 - The Simpsons: Tapped Out is released in the US for iOS. This is among one of the latest release dates of the game.
 * March 3 - The game is withdrawn from the App Store due to an overwhelming response, and EA had to fix their game servers.

August
 * August 16 - The game is re-released on the App Store.

September
 * September 21 - Level 21 is released.
 * September 28 - The Moonshine River Promotional is released.

October
 * October 3 - The Simpsons: Tapped Out Wiki is founded by Tarantulakid96.
 * October 12 - The Treehouse of Horror XXIII Event is released. Level 22 is released.

November
 * November 5 - Level 23 is released.
 * November 8 - The Thanksgiving 2012 Event is released.
 * November 13 - The Penny-Wiseguys Promotional is released.
 * November 28 - The Day the Earth Stood Cool Promotional is released.

December
 * December 5 - The Christmas 2012 Event is released. Level 24 is released.

2013
January
 * January 11 - Level 25 is released.
 * January 30 - The Valentine's Day 2013 Event is released.

February
 * February 14 - Level 26 is released.
 * February 28 - The Gorgeous Grampa Promotional is released.

March
 * March 7 - The St. Patrick's Day 2013 Event is released.
 * March 14 - The Dark Knight Court Promotional is released.
 * March 21 - Level 27 is released.

April
 * April 8 - The What Animated Women Want Promotional is released.
 * April 10 - The Whacking Day 2013 Event is released.
 * April 19 - Level 28 is released.

May
 * May 2 - The Whiskey Business Promotional is released.
 * May 10 - Level 29 is released.
 * May 16 - The Season 24 Yard Sale is released.
 * May 31 - Level 30 is released.

June
 * June 12 - The Squidport Expansion is released.
 * June 28 - The 4th of July 2013 Event is released.

July
 * July 15 - Level 31 is released.
 * July 25 - Level 32 is released.
 * July 31 - The Krustyland Expansion is released.

August
 * August 15 - Level 33 is released.
 * August 29 - Level 34 is released.

September
 * September 12 - Level 35 is released.
 * September 23 - The Homerland Promotional is released.

October
 * October 1 - The Treehouse of Horror XXIV Event is released.
 * October 23 - Level 36 is released.

November
 * November 7 - Level 37 is released.
 * November 15 - The Thanksgiving 2013 Event is released.

December
 * December 4 - The Yellow Subterfuge Promotional is released.
 * December 10 - The Christmas 2013 Event is released.

2014
January
 * January 8 - The Married to the Blob Promotional is released.
 * January 16 - Level 38 is released.
 * January 29 - The Super Bowl Event is released.

February
 * February 5 - The Valentine's Day 2014 Event is released.
 * February 26 - The Friend Points Update is released.

March
 * March 5 - The Diggs and The Man Who Grew Too Much Promotional is released.
 * March 12 - The St. Patrick's Day 2014 Event is released.
 * March 19 - The War of Art Promotional is released.
 * March 28 - Level 39 is released.

April
 * April 9 - The Days of Future Future Promotional is released.
 * April 15 - The Easter 2014 Event is released.
 * April 30 - Level 40 is released.

May
 * May 15 - The Yellow Badge of Cowardge Promotional is released.
 * May 22 - Level 41 is released.
 * May 24 - Frame rate issues are fixed and 20 Donuts are given to all players.

June
 * June 3 - Stonecutters 2014 Event is released. The Town Hall is updated so players can easily locate their characters.
 * June 18 - Level 42 is released.

July
 * July 2 - The 4th July 2014 Event is released.
 * July 17 - The Yard Sale 2014 Event is released.
 * July 23 - Level 43 is released.

August
 * August 19 - The Clash of Clones 2014 Event is released.

September
 * September 5 - Level 44 is released.
 * September 17 - Level 45 is released.
 * September 24 - The Clown in the Dumps Promotional is released.

October
 * October 7 - The Treehouse of Horror XXV Event is released.
 * October 22 - Level 46 is released.

November
 * November 12 - Level 47 is released.
 * November 20 - The Thanksgiving 2014 Event is released. The Covercraft Promotional is released.

December
 * December 3 - The Christmas 2014 Event is released.
 * December 16 - Level 48 is released.

2015
 January 
 * January 21 - The Musk Who Fell to Earth Promotional is released.
 * January 28 - Level 49 is released.

 February 
 * February 5 - The Stonecutters Black Market Sale is released.
 * February 12 - The Valentine's Day 2015 Event is released.
 * February 18 - The Superheroes 2015 Event is released.

 March 
 * March 4 - Level 50 is released.
 * March 16 - St. Patrick's Day 2015 Event is released.

 April 
 * April 1 - The Easter 2015 Event is released.
 * April 8 - Level 51 is released.
 * April 14 - The Terwilligers 2015 Event is released.
 * April 22 - The Kids Are All Fight Promotional is released.

 May 
 * May 6 - Level 52 is released.
 * May 13 - The Mathlete’s Feat Promotional is released
 * May 28 - Level 53 is released.

 June 
 * June 3 - The Pride Month 2015 Event is released.
 * June 12 - End of School Promotion 2015 is released.
 * June 17 - Level 54 is released.
 * June 23 - The Tap Ball 2015 Event is released.
 * June 30 - The 4th July 2015 Event is released.

 July 
 * July 15 - Level 55 is released.
 * July 22 - The Springfield Heights Expansion is released.

 August 
 * August 6 - Level 56 is released.
 * August 11 - The Monorail 2015 Event is released.

 September 
 * September 3 - Level 57 is released.
 * September 17 - Level 58 is released.
 * September 23 - The Every Man's Dream Promotional is released.
 * September 24 - The IRS Building and the Job Manager are released.
 * September 30 - The Oktoberfest 2015 Promotion is released.

 October 
 * October 6 - Treehouse of Horror XXVI Event is released.
 * October 16 - The Halloween of Horror Promotional is released.
 * October 21 - The Treehouse of Horror XXVI Promotional is released.
 * October 28 - The Halloween 2015 Promo, a new deal from Gil, is released.

 November 
 * November 10 - Level 59 is released.
 * November 19 - Thanksgiving 2015 Event is released.
 * November 27 - Black Friday 2015 Promotion is released.

 December 
 * December 2 - Springfield Heights Expansion (chapter two) is released.
 * December 8 - Winter 2015 Event is released.

2016
January
 * January 13 - The Much Apu About Something Promotional is released.
 * January 21 - The Deep Space Homer 2016 Event is released.

February
 * February 4 - The Big Game Supplies 2016 Promotion is released. In addition, the Daily Play Combo is removed and Daily Challenges take its place.
 * February 10 - The Valentine's Day 2016 Event is released.
 * February 17 - The World's Largest Redwood is released.
 * February 23 - The Burns' Casino 2016 Event is released.

March
 * March 9 - The Marge-ian Chronicles Promotional is released.
 * March 16 - The St. Easter 2016 Event is released.
 * March 31 - The Crook and Ladder 2016 Event is released.

April
 * April 13 - The Spring Cleaning 2016 Promotion is released.
 * April 19 - The Wild West 2016 Event is released.

May
 * May 09 - The Whacking Day 2016 Event is released.
 * May 13 - Level 60 is released.

June
 * June 02 - The Homer's Chiliad 2016 Event is released.
 * June 03 - The Donut Day 2016 Promotion is released.
 * June 14 - The Superheroes 2016 Event is released.
 * June 29 - The 4th of July 2016 Event is released.

July
 * July 26 - The Dilapidated Rail Yard Expansion is released.

August
 * August 03 - The Springfield Games 2016 Event is released.
 * August 16 - The SciFi 2016 Event is released.

September
 * September 21 - The Season Premiere 2016 Event is released.

October
 * October 04 - The Treehouse of Horror XXVII Event is released.

November
 * November 09 - The Havana Wild Weekend Promotional is released.
 * November 16 - The The Most Dangerous Game is released.

December
 * December 06 - The Winter 2016 Event is released.