Chronology

By Season

Season 1

Project .hack
(Season 1)

Date	Title	Game Version
2007	.hack//Epitaph of Twilight Novels .hack//Epitaph of Twilight Volume I .hack//Epitaph of Twilight Volume II	frägment
	The World R:1 is released
2009	.hack//AI Buster novels .hack//AI buster .hack//AI buster 2 2nd Character Wotan's Spear .hack//SIGN .hack//SIGN OVA "Intermezzo" SIGN SKT .hack//G.U. Begins .hack//SIGN Chapter 1: Encounter .hack//SIGN Chapter 2: Despair .hack//SIGN Chapter 3: Declaration .hack//SIGN Chapter 4: Catastrophe	The World:R1
2010	Games Tetralogy Vol.1~Vol.4 .hack//INFECTION .hack//MUTATION .hack//OUTBREAK .hack//QUARANTINE .hack//Liminality Liminality: In the Case of Mai Minase Liminality: In the Case of Yuki Aihara Liminality: In the Case of Kyoko Tohno Liminality: Trismegistus
	.hack//Another Birth .hack//Another Birth vol.1//INFECTION .hack//Another Birth vol.2//MUTATION .hack//Another Birth vol.3//OUTBREAK .hack//Another Birth vol.4//QUARANTINE .hack//XXXX .hack//XXXX Volume 1 .hack//XXXX Volume 2 New Novelization 「.hack」 .hack//G.U. Begins .hack// Chapter 1: Infection .hack// Chapter 2: Mutation .hack// Chapter 3: Outbreak .hack// Chapter 4: Destruction .hack// Chapter 5: Quarantine .hack// Chapter 6: Rebirth
2011	.hack//SIGN OVA "Unison"
2013	.hack//AI buster 2 Kamui (AI Buster 2) Rumor (AI Buster 2)
2014	.hack//AI buster 2 Firefly (AI Buster 2) .hack//Legend of the Twilight .hack//Legend of the Twilight Manga .hack//Legend of the Twilight Anime
unknown	.hack//frägment Online✕Offline .hack//MOBILE Vol.1 LGT .hack//GIFT .hack//4koma

.hack//Legacy Flower of Wolves & The Wavemaster .hack//RENA The Blooming Wolf & the Crimson Lightning [[Reflections in the Azure Sky (Manga)}|Reflections in the Azure Sky]]

Welcome to Mireille's Dental Clinic .hack//Present from Mother to Daughter Reasons for Donning the Cobalt Knight Uniform

Season 2

.hack Conglomerate
(Season 2)

Date	Title	Game Version
	.hack//ChupChopCase
2015	The World R:2 is released	The World:R2
2016	First Login .hack//Roots .hack//G.U. Begins .hack//Roots Chapter 1: Welcome to the World .hack//Roots Chapter 2: Forefeel .hack//Roots Chapter 3: Breakup .hack//Roots Chapter 4: Tragedy .hack//Roots Chapter 5: Painful Forest .hack//Roots Chapter 6: Determination .hack//Alcor
2017	.hack//GnU .hack//Cell Original G.U. Games .hack//G.U. Vol.1~Vol.3 .hack//G.U. vol.1 //Rebirth .hack//G.U. vol.2 //Reminisce .hack//G.U. vol.3 //Redemption Online Jack .hack//G.U. Trilogy .hack//G.U. novels .hack//G.U.+
	.hack//4koma Peaco's Story
	.hack//G.U. Returner
2018	.hack//G.U. Ragtime
	.hack//G.U. Innocent Call
	.hack//G.U. Last Recode .hack//G.U. Begins .hack//G.U. vol.4 Reconnection
unknown	.hack//4koma

Season 3

Project Third
(Season 3)

Date	Title	Game Version
2020	.hack//Link .hack//Link manga	The World R:X
2022	.hack//Quantum OVA .hack//Quantum i(Introduction) .hack//Quantum Novel .hack//Quantum+
2023	.hack//Bullet	Unknown (不明)
2024	.hack//Beyond The World Beyond The World: SORA	The World FORCE:ERA
2025	.hack//Versus .hack//Versus: Thanatos Report	VERSUS: The World
2030	Guilty Dragon GuilDra G: A Gag Concept	The World: Armed Conflict
2032	New World	The World: Re-vice age

Timeline by Media

.hack Official Website Timeline

dothack.com Timeline (North America)

AI Buster 2

AI buster 2 Timeline