Paradise Hotel 51

What are you looking at? (๑•̀ㅁ•́๑)✧

What is KILL the PAST?

NOTE: This is a rewrite/update on an editorial published on the original website (Source)
NOTE: In this interview from 2001, Suda specifically mentions that Moonlight Syndrome, The Silver Case & Flower, Sun and Rain all connect to each other, and he considers them a trilogy. (Source)

Think of incidents in your life that you wished never occurred.
Wouldn’t you wish to erase that past from your memory?
If said past is detested, then killing the past would erase it from existence.

“Kill the Past” is a loosely connected series of videogames revolving around the lives of individuals who are in conflict with their pasts. The purpose of this editorial is to give you a basic outline of the series. For a more in depth look at the games, you can refer back to their Analysis pages.

What does “Kill the Past” mean?

Who are the protagonists of Kill the Past?

How do the games connect to each other?

What is the chronology of Kill the Past?

The chronology of this metaseries can be very confusing, especially considering that most GHM games include references or continuity nods to each other.
To make things simpler, I decided to separate the main entries in three broad eras.
This chronology is based on in-game dates, official complementary materials such as guidebooks and fanbooks and the Silver Case timeline posted on the official website.
More often than not, each game takes place in or close to its release year. 
Keep in mind that there is also a variety of ancillary materials that were written by either Suda Goichi himself, or long time collaborator Ooka Masahi, and could be considered canonical. I will be covering those in the Merchandise section.

The Syndrome Era:

1996-1997: Twilight Syndrome

1997-1999: Moonlight Syndrome

More on the Syndrome franchise:

The Silver Case Era:

1999-2000: The Silver Case

2001: Flower, Sun and Rain

2005: The 25th Ward

Alternate Timeline: Killer7

The No More Heroes era:

2007: No More Heroes

2014-2017(?): Kurayami Dance

2017: Travis Strikes Again

2021: No More Heroes III

Miscellaneous References

There is also a number of other Grasshopper Manufacture games that contain references to KTP games.
Though it must be noted that they lack a strong narrative connection to those titles and their storylines do not necessairly revolve around an overt theme of ‘killing the past’, as such, I listed them as separate games.
These games may or may not be canon to the main timeline, point is, even if they were they’d be mostly irrelevant to the ongoing plot. You may think of them as isolated episodes if you’re so inclined. I personally don’t feel their narratives are interesting enough to analyze in-depth.
(The dates indicated here, save for Let it Die, are release dates. I’m pretty sure none of these other games are actually dated in-game.)

Simplified Chronology

Here’s a simplified chronology for quick reference. Main games are in red, side-games (which may or may not be canon) are not.