As of November 11, 2012, the PSUPedia and its affiliated wikis have made the transition to read-only mode. While edits can no longer be made, we hope you will continue to enjoy the data collected by the community for years to come!

From The PSUPedia

Current event

GUARDIANS Chronicle 5

JP PC: June 21, 2012 - July 19, 2012
Xbox 360: Unreleased

• GUARDIANS Chronicle 5

Past events

GUARDIANS Trial

JP PC: April 26, 2012 - May 24, 2012
Xbox 360: Unreleased

• GUARDIANS Trial

GUARDIANS Chronicle 4

JP PC: February 23, 2012 - March 22, 2012
Xbox 360: Unreleased

• GUARDIANS Chronicle 4

Operation Urban Defense

JP PC: December 15, 2011 - January 12, 2012
Xbox 360: Unreleased

• Operation Urban Defense

5th Anniversary Thanks Festa

JP PC: September 22, 2011 - November 2, 2011
Xbox 360: Unreleased

• 5th Anniversary Thanks Festa

GUARDIANS Chronicle 3

JP PC: July 20, 2011 - August 18, 2011
Xbox 360: Unreleased

• GUARDIANS Chronicle 3

Maximum Attack Infinity

JP PC: April 25, 2011 - May 23, 2011
Xbox 360: Unreleased

• Maximum Attack Infinity

GUARDIANS Chronicle 2

JP PC/PS2: March 3, 2011 - April 14, 2011
Xbox 360: March 30, 2012 - June 7, 2012

• GUARDIANS Chronicle 2

Ragol Memorial Festa

JP PC/PS2: December 21, 2010 - January 27, 2011
Xbox 360: Unreleased

• Ragol Memorial Festa

4th Anniversary Thanks Festa

JP PC/PS2: September 16, 2010 - October 21, 2010
Xbox 360: Unreleased

• 4th Anniversary Thanks Festa

GUARDIANS Chronicle

JP PC/PS2: July 8, 2010 - August 5, 2010
Xbox 360: December 16, 2011 - January 26, 2012

• GUARDIANS Chronicle

Maximum Attack X

JP PC/PS2: April 22, 2010 - May 20, 2010
Xbox 360: September 9, 2011 - October 20, 2011

• Maximum Attack X

The Great Arms Race

JP PC/PS2: December 24, 2009 - January 28, 2010
Xbox 360: June 10, 2011 - July 14, 2011

• The Great Arms Race

Spring Event^[1]

JP PC/PS2: September 24, 2009 - November 5, 2009
Xbox 360: March 25, 2011 - May 12, 2011

• Spring Event

Absolute Zero

JP PC/PS2: July 16, 2009 - August 27, 2009
Xbox 360: December 3, 2010 - January 20, 2011

• Absolute Zero

GUARDIANS Party Scoring

JP PC/PS2: January 29, 2009 - February 19, 2009
Xbox 360: Unreleased

• GUARDIANS Party Scoring

Maximum Attack G+

JP PC/PS2: November 27, 2008 - December 25, 2008
EN PC/PS2 and Xbox 360: January 29, 2010 - March 11, 2010

• Maximum Attack G+

Autumn Event^[2]

JP PC/PS2: September 25, 2008 - October 6, 2008
EN PC/PS2 and Xbox 360: September 25, 2009 - October 8, 2009

• Autumn Event

Summer Event^[3]

JP PC/PS2: August 21, 2008 - September 25, 2008
EN PC/PS2 and Xbox 360: July 3, 2009 - August 6, 2009

• Summer Event

Shred the Darkness

JP PC/PS2: June 26, 2008 - July 24, 2008
EN PC/PS2 and Xbox 360: April 17, 2009 - May 28, 2009^[4]

• Shred the Darkness

Winter Mission Carnival^[5]

JP PC/PS2: February 28, 2008 - April 21, 2008
EN PC/PS2 and Xbox 360: January 23, 2009 - March 5, 2009^[6]

• Winter Mission Carnival

Maximum Attack G

JP PC/PS2: December 13, 2007 - January 10, 2008
EN PC/PS2 and Xbox 360: April 25, 2008 - May 22, 2008
EN PC/PS2 and Xbox 360 (extension period): August 1, 2008 - August 21, 2008^[7]

• Maximum Attack G

Winter Event^[8]

JP PC/PS2: September 6, 2007 - September 26, 2007
EN PC/PS2: January 11, 2008 - January 31, 2008
Xbox 360: January 11, 2008 - February 7, 2008^[9]

• Winter Event

1Up Platinum Cup^[10]

JP PC/PS2: May 31, 2007 - July 12, 2007
EN PC/PS2 and Xbox 360: October 19, 2007 - November 15, 2007

• 1Up Platinum Cup

Operation Firebreak

JP PC/PS2: February 22, 2007 - March 22, 2007
EN PC/PS2 and Xbox 360: May 25, 2007 - June 28, 2007

• Operation Firebreak

Reference notes

1. ↑ The Japanese PC/PS2 version of this event was known as the 3rd Anniversary Thanks Festa.
2. ↑ The Japanese PC/PS2 version of this event was not known by any particular name.
3. ↑ The Japanese PC/PS2 version of this event was known as the 2nd Anniversary Thanks Festa.
4. ↑ Shred the Darkness originally was scheduled to conclude on May 21, 2009, however the event was extended by one week to run through May 28, 2009.
5. ↑ The Japanese PC/PS2 version of this event was known as the Dengeki Mission Carnival.
6. ↑ The Winter Mission Carnival originally was intended to conclude on February 26, 2009, however the event was extended by one week to run through March 5, 2009.
7. ↑ As compensation to those who were unable to participate in the initial run of Maximum Attack G due to error 065, the event was re-released during this timespan.
8. ↑ The Japanese PC/PS2 version of this event was known as the 1st Anniversary Thanks Festa.
9. ↑ Due to the delay of update 038 for the Xbox 360 servers, the Winter Event was extended by one extra week for Xbox 360 players.
10. ↑ This Japanese PC/PS2 version of this event was known as the Famitsu Cup.