| # | Group | Personality Island | Lithuanian name | Corresponding Core Memory | Trivia |
| Prior to 2015 September 5 | |||||
| 1 | - | Patriotism Island | Patriotizmo sala | 2004 April 30, watching nighttime Europe | tallest; features flags of Lithuania and the European Union; has a January 13th Section and a Baltic Way Section |
| - | Christianity Island | Krikščionybės sala | 2003, first lesson about religion | former; no remnants remain, but is often discussed by the emotions | |
| 2 | High School Memorial Island | Vidurinės mokyklos memorialinė sala | 2014 July, graduation ceremony | often unsuccessfully used to fuel university activities | |
| 3 | Academic Interests Islands [Akademinių interesų salos] |
Encyclopedic Knowledge Island | Enciklopedinių žinių sala | 2013, Vsauce's "A Defense of Comic Sans" | established ca. 2004; has statues of world's various landmarks not included as part of any of the Geography Islands |
| 4 | Mathematics & Programming Island | Matematikos ir programavimo sala | 2015 November 4, learning about an earned trip to St. Petersburg programming contest | established ca. 2004; previous Core Memories include 2006 early, being first told about programming, and 2009, winning a regional programming contest and a sizable sum of money | |
| 5 | Physics & Astronomy Island | Fizikos ir astronomijos sala | 2012, presenting a Powers of Ten-styled hexagonal booklet | previous Core Memories include ca. 2006, getting a 7th grade physics book several years early | |
| 6 | Music Island | Muzikos sala | 2004, first enrolled to a music school | has a Piano Playing Section, as well as remnants of a violin | |
| - | Visual Arts Island | Dailės sala | 2011 early, first upload to deviantART | disestablished ca. 2014 | |
| 7 | History Islands [Istorijos salos] |
Renaissance Island | Renesanso sala | 2012 late, learning about Shakespeare | |
| 8 | Baroque Island | Baroko sala | 2012 late/2013 early, learning about musical styles | themed after the Polish-Lithuanian Commonwealth | |
| 9 | 19th Century Island | 19-ojo amžiaus sala | ca. 2005, learning about Lithuanian ethnographic regions | themed after the four etnographic regions of Lithuania | |
| - | World War II Island | II pasaulinio karo sala | 2014 early, watching an elaborate WWII movie | former; remnants moved to Hitler Parody Island | |
| 10 | Soviet Union Island | Sovietų Sąjungos sala | 2009 late, visiting a Soviet-themed jail in Latvia | variant Lithuanian name: "Tarybų Sąjungos sala" | |
| 11 | 1960s Island | 7-ojo dešimtmečio sala | 2015 May, France Gall's "Poupée de cire, poupée de son" | ||
| 12 | 1980s Island | 9-ojo dešimtmečio sala | 2015 February, a Back to the Future moment | statue of Mikhail Gorbachev shared with Soviet Union Island | |
| 13 | 2000s Island | 1-ojo dešimtmečio sala | 2006, O-Zone's "Dragostea din tei" | ||
| 14 | Genealogy Island | Genealogijos sala | 2012, creating an electronic family tree from mother's side | ||
| 15 | Geography Islands [Geografijos salos] |
Anglophone World Island | Anglakalbio pasaulio sala | 2011, forming close bonds with English friends | |
| 16 | Europe Island | Europos sala | 2015 January 1, first receiving an euro coin | ||
| 17 | Foreign Languages Islands [Užsienio kalbų salos] |
Остров русского и России | N/A [EN: Russian & Russia Island] | 2015, "Mo' Sochi, Mo' Problems" | previous Core Memory: 2014, Putin's "I am gay" video |
| 18 | Isle du français et de la francophonie | N/A [EN: French & Francophone World Island] | 2013 April 28, first completing a lesson on Duolingo | due to a lot of overlap and lack of actual islands, Geography Islands and Foreign Languages Islands appear as a single group | |
| 19 | Insulo de Esperanto | N/A [EN: Esperanto Island] | 2015 May 28, when the Duolingo Esperanto course was released | ||
| 20 | Fictional Worlds Islands [Išgalvotų pasaulių salos] |
Charlie and the Chocolate Factory Island | "Čarlio ir šokolado fabriko" sala | 2005 September, Violet Beauregarde's blueberry inflation scene | disestablished ca. 2006, reestablished 2013; variant Lithuanian name: ""Čarlio šokolado rojuje" sala" |
| - | - | - | - | remnants of islands that were formerly here, including: Portal Island, Invader Zim Island, Hetalia Island, Hunger Games Island, Welcome to Night Vale Island and The Stanley Parable Island | |
| 21 | Homestuck Island | "Įstrigę namuose" sala | 2010 June 12, reading Hivebent | ||
| 22 | Kerbal Space Island | Kerbalų kosmoso sala | 2014 May 22, first Mün landing and first watch-mark-kerman-die post | ||
| 23 | Steven Universe Island | Krištolo brangakmenių sala | 2015 summer, Full Disclosure / Steven's Lament / Steven with his eyes full of tears | "Krištolo brangakmenių sala" literally translates as "Crystal Gems Island" | |
| 24 | Required Literature Island | Programinės literatūros sala | 2012 late, having a table of various authors from different epochs | more distant than other Fictional Worlds Islands, has a Lithuanian and English sections | |
| 25 | Own Creations Islands [Savos kūrybos salos] |
MarissaTheWriter Island | N/A | 2014 August 12, publishing MTW Complete Anthology | a wall in MarissaTheWriter Island separates Fictional Worlds Islands and Own Creation Islands; also has artifacts from other trollfics; previous Core Memory: 2011 June, reading chapter 5 of ITS MY LIFE! |
| 26 | Portal: The 4th Millennium Island | ""Portal": 4-ojo Tūkstantmečio" sala | 2008 December 21, first picture drawn for P:t4M | only supported by MarissaTheWriter Island; Creativity argues that 2008 December 24 is the founding date | |
| 27 | Calliope's Update Girl Island | N/A | 2014 November 27, winning NaNoWriMo | founded in 2014 February as Calliope and the Final Update Island, often mistakenly used as a NaNoWriMo Island due to similar elements, with catastrophic results | |
| 28 | Caliborn's Stories Island | Keliborno istorjų sala | 2014 February, first Caliborn's Stories | Caliborn, the stories' centerpiece, is invited to Headquarters frequently | |
| 29 | Hitler Parody Island | Hitlerio parodijų sala | 2014 early, an AlphaSkyRaider / Charizard parody of Minecraft | used to fuel German lessons in lieu of an actual German Island | |
| 30 | - | Transgender Island | Translytiškumo sala | 2015 January 13, chapter of HARRY POTTER AN THE KILL OF SNAPE | second tallest, hosts a transgender flag |
| 31 | Social Networks Island | Socialinių tinklų sala | 2014 February 27-28, "hats inside hats" Tumblr post getting popular | Tumblr and reddit dominate, though being separate | |
| 32 | (distant, behind Patriotism Island) | Family Island | Šeimos sala | 2015 summer, phone broken | three figures stand over a broken phone |
| 33 | Principles Island | Principų sala | 2002, first encountering school rules (mostly faded) | e.g. being against smoking, etc. | |
| 34 | Parkour Island | Parkūro sala | 2003, a Physical Education lesson (mostly faded) | brought up as an counterpart to Riley's Goofball Island, but is actually a toned down version | |
| 35 | (only appear yearly) | Basketball Island | Krepšinio sala | 2003, Lithuania wins EuroBasket | as of 2015 September, prepared for EuroBasket 2015 |
| 36 | Eurovision Island | Eurovizijos sala | 2006 early, LT United's We are the Winners | has been staying for unusually long in 2015 | |
| Changes during and after 2015 September 5 | |||||
| 37 | Fictional Worlds Islands | Inside Out Island | "Išvirkščio pasaulio" sala | 2015 September 5, end of movie Inside Out ("Riley is twelve") | second Core Memory: 2015 November 3, acquiring Russian Inside Out DVD; island subsequently renamed "Остров «Головоломки»" |
| 38 | Own Creations Islands | Rose Quartz Trilogy Island | N/A | 2015 September 17, Rose Quartz Universe Junior | other two parts of "trilogy" are Lion 3: Straight to Trollfic and Blooming Rose |
| 37 | (yearly) | Basketball Island | Krepšinio sala | [disappears] | disappears naturally, as EuroBasket 2015 is over |
| 36 | (yearly) | Eurovision Island | Eurovizijos sala | [disappears] | remaining parts merged with MarissaTheWriter Island to facilitate the finishing of Violet and the Partner in Crime to Literature |
| 37 | (yearly) | Christmas & New Year Island | Kalėdų ir Naujųjų metų sala | 2015 January 1, watching fireworks outside | not to be mistaken with the actual geographic feature; usually Core Memories older than a year have to be discarded |
| 36 | Fictional Worlds Islands | Homestuck Island | "Įstrigę namuose" sala | [disappears] | replaced by Undertale Island; however, much like other former Fictional Worlds Islands, key elements were moved to the podium |
| 37 | Fictional Worlds Islands | Undertale Island | N/A [RU: Остров «Андертейла»] | 2015 December 16, early in the game, backstabbed by Flowey | replaces Homestuck Island immediately after its fall, as both Homestuck and Undertale share a major creator (Toby Fox); around April, even gets renamed "Toby Fox Island" due to the increasing appearance of Homestuck elements and essentially becoming a de-facto Homestuck Island v2 |
| 36 | Own Creations Islands | Hitler Parody Island | Hitlerio parodijų sala | [disappears] | replaced by Andersen's Mind Island |
| 37 | Own Creations Islands | Andersen's Mind Island | N/A [RU: Остров «В голове у Андерсон»] | 2015 December 20, Riley Andersen vs. the Angry German Kid | replaces Hitler Parody Island; Creativity wanted the replacement to happen with Inside Hitler, but that was not meant to be |
| 38 | Academic Interests Islands | Visual Arts Island v2 | Dailės sala - 2 versija | 2015 December 29, drawing of Creativity | has a Vector Graphics Section which gradually ends up taking up the majority of the Island |
| 38 | (yearly) | Christmas & New Year Island | Kalėdų ir Naujųjų metų sala | [Core Memory replaced] 2016 January 1, a firework parade that lasted for 20 minutes |
mainly to be used for next year's Christmas & New Year Island |
| 37 | (yearly) | Christmas & New Year Island | Kalėdų ir Naujųjų metų sala | [disappears] | disappears naturally with the season ending |
| 38 | (yearly) | Eurovision Island | Eurovizijos sala | 2016 March 13, learning about the new Eurovision representative | stays over the course of the year, as interest in Eurovision is renewed for the whole year round |
| 37 | Own Creations Islands | Caliborn's Stories Island | Keliborno istorjų sala | [disappears] | disappears ca. April 2016, as there is little interest to keep the stories up (separation between Inside Out in September and The Beginner's Guide in April) and because of the ambiguous ending of Homestuck |
| 36 | Geography Islands | Anglophone World Island | Anglakalbio pasaulio sala | [disappears] | replaced with Global Politics Island, as the two main characters of the island (US and UK) have been replaced with their respective headlines (Trump and Brexit) |
| 37 | Geography Islands | Global Politics Island | Pasaulinės politikos sala | 2016 June 23-24, staying up at night watching a Brexit-related BBC broadcast | replaces Anglophone World Island; also includes elements of Ukraine/Crimea attained over July during the trip to Crimea |
| 36 | History Islands | 1960s Island | 7-ojo dešimtmečio sala | [disappears] | disappears naturally as interest declines |
| 36 | (distant) | Family Island | Šeimos sala | [Core Memory replaced] 2016 September 10, biking with my brother from Kaunas to Marijampolė ("Marithon") |
as a more positive Core Memory powers this Island, it also moves slightly to the front |
| 35 | Foreign Languages Islands | Остров русского и России | N/A [EN: Russian & Russia Island] | [disappears] | replaced with a unified Duolingo Island |
| 34 | Isle du français et de la francophonie | N/A [EN: French & Francophone World Island] | [disappears] | ||
| 33 | Insulo de Esperanto | N/A [EN: Esperanto Island] | [disappears] | ||
| 34 | (former location of Foreign Languages Islands) | Duolingo Island | N/A [FR: L'isle de Duolingo, RU: Остров Дуолинго, EO: Insulo de Duolingo] | 2013 April 28, first completing a lesson on Duolingo (French) | instated 2016 September, replaces former Foreign Languages Islands in a possibly mental illness-related incident, now includes sections for German and Norwegian in addition to Russian, French and Esperanto |
| 35 | (next to Patriotism Island) | Mental Illness Island | Protinės ligos sala | 2016 September 30, first mental illness-related appointment | "mental illness" is unspecified due to doctors' unwillingness to assign a diagnosis and general mixed signals |