Legend of Heroes, The: Trails in the Sky the 3rd

Open all Chests on the Luxury Airship Lusitania (4 total)

Open all treasure chests found in the Jade Corridor and the Arseille (17 total)

Complete the prologue

Complete the first part of Moon Door 1

Complete Chapter 1

Complete Chapter 2

[Chapter 2] Win three fights in the Grancel Arena and obtain a sealing stone

Have 5000 or more of each type of sepith in your possession at once

Have 9000 or more of each type of sepith in your possession at once

Open all treasure chests found in Grancel City, Grancel Port and Grancel Castle (44 total)

Upgrade all of Kevin's Orbment Slots to level 3

Upgrade all of Ries' orbment slots to level 3

Upgrade all of Tita and Julia's orbment slots to level 3

Upgrade all of Mueller, Josette, Joshua and Kloe's orbment slots to level 3

Upgrade all of Zin and Olivier's orbment slots to level 3

Upgrade all of Anelace, Agate, Scherazard and Estelle's orbment slots to level 3

Upgrade all of Richard and Renne's orbment slots to level 3

Open all treasure chests in the Golden and Silver Roads along with the final area by the warp (29 total)

Open all treasure chests in Le Locle Lodge, Balstar Channel, Saint-Croix Forest, and Grimsel Fortress (41 total)

Open all treasure chests found in the Luminous and Umbral Labyrinth areas (22 total)

Open all treasure chests found in the Erbe Scenic Route and Monochrome Schoolhouse (18 total)

Find the three hidden caches of 1000 of each type of Sepith in the Looking Glass

[Sun Door 1] Complete the minigame and obtain Josette's S-Craft

Talk to Scherazard and learn of the existence of a book by Gilbert Stein on the bookshelves.

[Chapter 4] Rescue Gilbert from a terrible fate

[Star Door 11] Win the battle behind the door and fully read the report for the first time.

Discover all the books on the bookshelves in the Garden of Recluse

Defeat 4 or more enemies with Josette's Orbal Bomb Craft

Open all treasure chests found in the Looking Glass (19 total)

Open all treasure chests found in the Impregnable Fortress (34 total)

Open all treasure chests found in the Black Ark (44 total)

Open all treasure chests found in Gehenna (17 total)

Complete the second part of Moon Door 1

Open all treasure chests found in the Abyss (16 total)

Complete Star Door 1

[Star Door 1] On normal difficulty or above, actually beat Mueller in Julia's duel. Retry is permitted.

Read the report behind Star Door 2 for the first time

Complete Star Door 3 for the first time

Complete the first part of the Abyss, beat the boss and obtain a piece of Zemurian Ore. Normal difficulty or above.

Complete the second part of the Abyss, beat the boss and obtain a piece of Zemurian Ore. Normal difficulty or above.

Complete the third part of the Abyss, beat the boss and obtain a piece of Zemurian Ore. Normal difficulty or above.

Reach the furthest depths of the Abyss and defeat the Tempest Pom and its shining minions and obtain the final piece of Zemurian Ore. Normal difficulty or above.

[Sun Door 5] Beat the Kiseki de Pon minigame on the lowest difficulty

[Sun Door 5] Beat the Kiseki de Pon minigame on hard

[Sun Door 5] Beat the Kiseki de Pon minigame on brutal

[Sun Door 5] Beat the Kiseki de Pon minigame on maniac

[Sun Door 4] Won a game of blackjack and the chance to play against Gambler Jack

[Sun Door 4] Beat Gambler Jack in a game of poker

Learn 10 recipes

Learn 20 Recipes

Learn 30 Recipes

Learn all 40 recipes

Complete Star Door 15 for the first time. See comments for a link to an uncensored version.

Complete Moon Door 4

Fill out all the details for 25 monsters

Fill out all the details for 50 monsters

Fill out all the details for 100 monsters

Fill out all the details for 150 monsters

Fill out all the details for 200 monsters

Fill out all the details for all 261 monsters

[Star Door 10] Complete the trial, read the report and obtain Renne's S-Craft. (Return to Garden after reading report)

[Moon Door 2] Open all treasure chests in the Grancel Sewers (7 total)

Complete Moon Door 2

Complete Moon Door 3

Complete Moon Door 5

Complete Star Door 14

[Chapter 7] Finish up the investigation of Aster House and arrive at a truly awful place.

Obtain the Mirror Quartz as a reward for your bravery

Obtain the Reflect Quartz as a reward for your cowardice

Complete Chapter 4

Complete Star Door 8

[Star Door 6] Open all the treasure chests found in the Ancient Dragon's Dwelling (11 total)

Witnessed Gilbert's single moment of awesome and arrived to Phantasmagoria. Be aware that all non-Phantasmagoria achievements are missable beyond this point.

Open all treasure chests in the right wing of Phantasmagoria (17 total)

Complete the Golden Road

Complete the Silver Road

Open all treasure chests in the left wing of Phantasmagoria (17 total)

Open all treasure chests found in the main wing of Phantasmagoria (16 total)

Open all treasure chests found in the giant gate area of Phantasmagoria (23 total)

Beat the Game

[Chapter 6] Beat Bleublanc, Walter, and Lucciola to gain access to Farewell Arena

Win 100 Battles

Win 300 Battles

[Sun Door 2] Win a 5 round angler's duel against Lloyd for the first time

[Chapter 6] Beat the boss at the Farewell Arena.

Complete Chapter 5

[Chapter 6] Beat the boss at the end of the Lakeside Laboratory

Complete Star Door 5

Beat the game without retrying more than 10 times and without ever using the option to lower difficulty and retry on normal difficulty or above (nightmare if on NG+)

Complete chapter 7

[Chapter 6] Beat Cassius in 50 turns or less on normal difficulty or higher (nightmare if on NG+)

[Chapter 7] Defeat Weissmann and his demons in 100 turns or less on normal difficulty or higher (or nightmare if on NG+)

[Sun Door 3] Clear the nightmare level of the tournament with Anelace in the party and obtain her best sword.

[Chapter 6] Beat the Guardian at the end of the Monochrome Schoolhouse

[Chapter 4] Beat the Scherazard Doppelganger at the end of St. Croix Forest and gain access to Grimsel Fortress

[Chapter 5] Obtain the sealing Stone in the Luminous Labyrinth and gain access to a surprising party member

[Chapter 5] Obtain the sealing stone in the Umbral Labyrinth and gain access to your last ally

[Chapter 4] Beat the Agate Doppelganger at the end of Grimsel Fortress

[Final Chapter] Complete the left wing of Phantasmagoria

[Final Chapter] Complete the main wing of Phantasmagoria

[Final Chapter] Complete the right wing of Phantasmagoria

[Final Chapter] Complete the giant gate path of Phantasmagoria

Win 500 Battles

[Sun Door 2] Win a 10 round angler's duel versus Norche

[Sun Door 2] Win a fifteen round angler's duel versus Mr. Fisher

[Chapter 6] Beat the boss at the end of the Impregnable Fortress.

[Chapter 6] After restoring color to the Monochrome Schoolhouse beat those who guard the gate to the old schoolhouse

Complete Star Door 12

Obtain a powerful weapon for any character from one of the doppelgangers in the Abyss

Complete Star Door 9

Complete Star Door 4

[Star Door 7] Complete the trial and read the report

[Star Door 13] Open the door and read the report for the first time

[Sun Door 3] Beat all three rounds of the tournament on normal

[Sun Door 3] Beat all three rounds of the tournament on hard

[Sun Door 3] Beat all three rounds of the tournament on nightmare

Complete Star Door 6

Lowering difficulty and retrying will void any battle challenges. If playing on NG+, nightmare difficulty will be required for them.

[Chapter 6] Beat Kyle and Don in the hangar of the Black Ark to gain access to the rest of the ship and an upgrade to Josette's S-Craft

[Chapter 6] Beat Morgan and gain access to the innermost part of the command center

[Chapter 6] Beat Amalthea and gain access to the command center

Learn all crafts for every character. Don't forget that Sun Door 1, Star Door 10, and Moon Door 1 unlock some crafts!

[Chapter 2] Discover Gilbert on the garden terrace and rescue him

[Chapter 4] Beat the Anelance Doppelganger at the end of Balstar Channel and gain access to St. Croix Forest

[Chapter 6] Beat Grant and obtain a keycard

[Chapter 6] Beat Carna and gain the second of the keycards

[Chapter 4] Beat the Agate Doppelganger with Tita in the party

Complete Star Door 6 without making use of the rest location or using any consumables on normal difficulty or above in one session the first time. On NG+ nightmare isn't needed

[Chapter 6] Defeat Don and Kyle with Josette in the party and end the battle with no party members in KO status.

[Chapter 6] Beat Phillip with Julia in your party on normal difficulty or above

[Chapter 6] Defeat Kilika with Zin in the party on normal difficulty or higher

[Chapter 6] Defeat Bleublanc, Lucciola, and Walter with Scherazard in your party

Beat eight enemies with a single attack without using S-Crafts

[Chapter 4] Defeat Astarte without defeating more than one of the Exilers on normal difficulty or above

[Chapter 3] With Josette, Kloe and one other female in the party, beat the Fake Kevin at the end of the Silver Road without him using Grail Sphere (S-Breaks allowed)

[Chapter 2] Beat Rostrum without any party members being affected by blind or seal status.

Defeat five or more enemies at the same time using Renne's Blood Circle 2 craft

Defeat five or more enemies at the same time using Mortal Punishment II

Defeat six or more enemies at the same time using Arc Fencer II

Defeat six or more enemies at the same time using True Luminous Wheel

Using Kevin's Gorgon Arrow craft, petrify at least two enemies in one battle.

[Moon Door 2] In battle, Aina defeats an enemy

[Chapter 6] Beat Kurt and gain access to the last of the keycards

[Chapter 3] Defeat the Fake Ries at the end of the Golden Road without any attacks being reflected back on you.

[Chapter 6] Beat Cid and gain access to the barracks

[Chapter 6] Defeat Schwarzritter after defeating two of his clones. Clones must be defeated by reducing their HP to 0 before defeating Schwarzritter

[Chapter 5] Defeat all the spiders without any party member being affected by poison

Defeat the final boss without using S-Crafts for the first phase of the battle

[Chapter 6] Beat the Ravens without any of them being revived

[Prologue] Beat Gilbert without being hit by the G-Apache's beam attack

[Chapter 1] Beat the boss without being hit by any of the fire attacks from the Sudorudo Gizas