This guide covers all of the things you'll need to get every achievement for the game. There are a number of missables that are not included as well as optional post-game (coda) content. In the interest of keeping this guide concise, I left out almost everything not achievement related.

The chronological order in which to play the series would be Sky -> Zero/Azure (Crossbell) -> Cold Steel -> Reverie -> Daybreak. Trails into Reverie serves as an epilogue to both the Crossbell arc and the Cold Steel arc, so playing through those two is essential for an understanding of the story. Reverie also has spoilers for Trails in the Sky, but it is not necessary to play that first.

Yes! Reverie joins the rare few Trails titles that allows you to 100% the game in a single playthrough. Just make sure to play the game on Nightmare mode if you choose to go this route.

I Dream of You: Unlock this achievement by completing:

• The first 17 daydreams
  
• All episodes of Magical Alisa
  
• All Beachside Vay-Cay activities
  
• The first 3 difficulties of Who Wants to be a Mirannaire
  
• All stages of Project Tyrfing

Encyclopedia Battalica: Enemies must be analyzed, not just defeated, in order to count. This can be done using battle scope, certain characters' detector craft, or using the Analyze quartz. Simply fighting monsters will also fill in their entry, but it may take multiple encounters to gather all of the information.

There are quite a few battles that have enemies with the same name but are different scans. I added (2) behind names where it's a second entry for that enemy in the same area. These enemies may be in the same battle and share the same name or in back to back battles. Always double check the battlefield before you KO anyone!

Page Turner: To unlock this achievement you'll need to buy 4 newspaper issues as noted in the guide and then find the remaining 12 collectible books randomly in the Reverie Corridor. They can appear in any treasure chest on any level. The Moonless Morn books do not count towards this achievement.

Beachside Vay-Cay: Unlock this achievement by playing all three mini games with every available partner

Indomitable Liberator: You need to earn 500 of the possible 800 RP to unlock this achievement

Lover of Reverie: Unlock this achievement by completing all master missions excluding Coda Content. It's confusing as to which items are Coda content and which are not, so here is the list:

• Complete 4th stratum
  
• Defeat (x number of) guardians on 2nd/3rd/4th stratum
  
• Defeat 25 guardians
  
• Clear 15 mini missions
  
• View 26 day dreams (memories & minigames count)
  
• Conquer 10 trials
  
• Expel 10 void spires
  
• Use 6 gold sealing stones
  
• Use 50 silver sealing stones
  
• Conquer 800 battles
  
• Defeat 20 formidable foes with Rean/Lloyd/C in party
  
• Open 203 treasure chests in Zemuria
  
• Open 200 treasure chests in True Reverie Corridor
  
• Use 150 S crafts
  
• Organize 300 united fronts
  
• Enhance 100 weapons
  
• Craft 3 weapons using black zemurian ore
  
• Enhance 50 pieces of armor
  
• Enhance 100 weapons
  
• Exchange 50 sets of accessories
  
• Reach level 150 with all allies
  
• Reach Link 7 between a pair of allies
  
• Reach level 10 with a Master Quartz
  
• Find 5 divine quartz
  
• Gather 2000 U-material
  
• Create 28 superb and peculiar dishes
  
• Catch 26 species of fish
  
• 100% books
  
• 100% character notes
  
• 100% battle notes
  
• Win against 31 people and KeA in Pom Pom Party!
  
• Win against 19 people and C in Vantage Masters
  
• Achieve rank C in watermelon splitting
  
• Achieve rank C in A/B/C courses of banana boat
  
• Spend 11 intimate moments at the beach

Start a new game on Nightmare difficulty

ORCHIS TOWER
- 36F: 3 treasure chests
- 37F: 2 treasure chests
- 38F: 1 treasure chest
- Enemies: IDF soldier - rifle, IDF soldier - greatsword, doven kaiser, kazakh doven, asmodyne

Total Treasure Chests = 6

ENTERTAINMENT DISTRICT
- Buy impromptu potato salad at the jazz bar

CENTRAL SQUARE
- In department store, buy Crossbell Times - Independence Special

HARBOR
- Fishing spot

EAST STREET
- Buy mapo tofu at the inn
- Buy Custom Handle from Fishing Guild

Visit all areas/talk to all people marked with red exclamation points to progress the plot

GEOFRONT B
- Area 1: 3 treasure chests
- Area 2: 4 treasure chests
- Enemies: needle rat, torso mk III S, habanalien g, grand mosquito, superior mosquito, gundharva

Total Treasure Chests = 13

- +3 RP for decreasing boss' HP to 60%
- Enemies: EDF soldier - rifle, EDF soldier - sword (1), EDF soldier - sword (2), Rufus

YMIR
- Buy Agilataran Leader at Plover Goods

YMIR VALLEY
- Area 1: 3 treasure chests
- Fishing spot
- Area 2: 3 treasure chests
- Enemies: snow feline, mist flower, icicoon, pestcargot, sasquatch

- Get the second boss' HP below the green line for +3 RP
- Defeat the third boss within 50 turns for +5 RP
- Enemies: Claire, Matteus, Matteus (2)

EISENGARD RANGE
- Area 1: 2 treasure chests
- Area 2: 2 treasure chests
- Enemies: iron vise, gregor spinner, magic knight isra-zamiel

Total Treasure Chests = 23

- Plot

AUROCHS CANYON
- Enemies: EDF soldier - sword (1), EDF soldier - sword (2), EDF soldier - rifle, zoa balor

WATERWAY
- Area 1: 3 treasure chests
- Enemies: sleepfrog, neo roach, murder organ, omegacean

OST DISTRICT
- Buy juicy ham cutlet in the pub

VESTA STREET
- Buy soft boiled egg sandwich in the bakery
- Talk to Vincent in the inn for his note

VAINQUEUR STREET
- In the department store, buy Imperial Chronicle Special. Talk to Alan and Bridget upstairs for their notes and +3 RP

DREICHELS PLAZA
- Buy very berry ice cream from food stall
- Fishing spot

MATER PARK
- Fresh-squeezed juice from food stall
- Fishing spot

LEICA DISTRICT
- Fruitful pancakes from the cafe
- Buy Lakelord OFR in Lakelord & Co
- Talk to Emily and Thersia in Private Home
- Talk to Dorothee in the museum for a note. Head to the basement to complete her quest for +5 RP and a note
- Museum basement: 1 treasure chest
- Enemies: kijimun, adeptus, afterglow vessel, shadow vessel

GARNIER DISTRICT
- Buy strawberry crepe from food stall

EAST CROSSBELL HIGHWAY
- Boathouse Area: 1 treasure chest
- Fishing spot
- Area 2: 4 treasure chests
- Fishing spot
- Area 1: 1 treasure chest
- Enemies: venom plant, tomb bettle, death scorp, danghorn, venom plant king, EDF soldier - sword (1), EDF soldier - sword (2), EDF soldier - rifle

OLD ARMORICA ROAD
- Area 1: 4 treasure chests
- Fishing spot
- Area 2: 3 treasure chests
- Enemies: egg-guard snake, mothro, fartacus, blade fang, dino volger

ARMORICA VILLAGE
- Buy rural minestrone from the inn
- Fishing spot
- Buy crown line from general store

Some items do not appear every time in the Reverie Corridor. You may need to reset the level and go through an additional time (or times) to find missing orbs, books, trial keys, recipes, etc.

FIRST STRATUM
- 1 gold sealing stone, 2 blue sealing stones, 1 red sealing stone
- Enemies: hammer troll, cubile, silver fang, marble doll, sol blein, dark knight, mega kraken, gunaigaga, dedigaga, giga tiamet, cubelion

ANCIENT BATTLEFIELD
- Outside: 6 treasure chests
- Inside: 2 treasure chests
- Outside: 2 treasure chests
- Fishing spot
- Enemies: wormhood, feathered guest, salamandragon, ragnar, spike jellyfish, gold giant

Total treasure chests = 50

- Win second boss battle within 40 turns for +5 RF
- Enemies: Lau, Heiyue member (black hair), Heiyue member (brown hair), Cao, Garcia

- Plot

- Battle 1: C, Lapis, Swin, Nadia
- Battle 2: Ash, Elliot, Altina, Elise

- Area 1: 3 treasure chests
- Enemies: vampire bat, double sickle, catobeplas, young officer - sword, young officer - rifle, black doven, young officer - rifle (2), young officer - sword (2)
- Area 2: 1 treasure chest
- Enemies: hell slugger, greater devil, baleful raider, EDF soldier - sword, EDF soldier - rifle, EDF soldier - sword (2)

Total Treasure Chests = 54

- Battle 1:Rean, Crow, Jusis, Millium
- Battle 2:C, Lapis, Swin, Nadia

- Plot

CENTRAL SQUARE
- Buy Crossbell Times - Special Issue at the department store

WEST STREET
- Buy devil's food cornet at the bakery

EAST STREET
- Buy RFs zero bearing in the fisherman's guild

CATHEDRAL
- Buy acerbic red soda from Chroma in the cathedral

MAINZ MOUNTAIN PATH
- Area 1: 2 treasure chests
- Area 2: 2 treasure chests
- Fishing spot
- Enemies: petro drome, dong, ogrefly, brockary, crimowl, petrifying hydra, rainbow drome

NORD HIGHLANDS - SOUTH
- 3 treasure chests
- Enemies: neo fall eagle, rhinocider, hypnotoad, queen toad

NOMADIC SETTLEMENT
- Talk to Sharl to learn spicy kebab

NORD HIGHLANDS - NORTH
- 9 treasure chest
- Fishing
- Enemies: impossum, thunder loach, thunder quaker, guilded quaker

NORD HIGHLANDS - SOUTH
- 5 treasure chests
- Defeat cryptid for +5 RP
- Enemies: grass hopper, hopper chief, volg tiger, scalyptera, adamantis

Total Treasure Chests = 75

WATCHTOWER
- Plot

NOMADIC SETTLEMENT
- Plot

WATCHTOWER
- 1F: 2 treasure chests
- 2F: 2 treasure chests
- 3F: 1 treasure chest
- 4F: 2 treasure chests
- Enemies: MKE maus, tri-attacker V2, tri-attacker SS, dovon ace, pale apache X, Divine Blade of the Wind

- Total Treasure Chests = 82

- +6 RP for defeating all enemies
- Enemies: 23rd Division soldier - sword, 23rd Division soldier - rifle, Colonel Dalton

- Enemy: Divine Blade of the Wind?

ST. URSULA
- Fishing spot
- Buy aged beef stew at the inn

UNDERGROUND PATH
- Area 1: 2 treasure chests
- Area 2: 3 treasure chests
- Enemies: blood monad, runaway sheep, genbu draco, skullscythe, oakenshell, helmord, EDF soldier - sword (1), EDF soldier - rifle, EDF soldier - sword (2)

UNDERGROUND FREIGHT LINE
- 1 treasure chest

RF MILITARY FACTORY
- Enemy: D-Bestial

SECOND STRATUM
- 1 gold, 4 blue, 2 red sealing stones
- Manly Munchies - Jelly book for the Resurrection Jelly recipe
- Trial key 1, trial key 2
- Enemies: generot, octogeist, bennu nucleus, sudorudo, harpy, titania, vargem, crushbone boar, gourd boar, monides, alucard bennu, crused looper, urkganon, hollow lloyd, hollow elie, hollow tio, hollow randy, zan su, zan su of the dark, zan su benares

- Area 1: 4 treasure chests

- Area 1: 4 treasure chests
- Area 2: 1 treasure chests

- Area 2: 6 treasure chests
- Enemies: sneak gunnder G-0, sneak gunnder R-0, sneak gunnder M-0, torso mk. III G, gun buster type-A, zephyranthes, gundharva, oz mirage 'crimson', oz mirage 'cobalt'

- Area 2: 3 treasure chests
- Enemies: fortune coin, PG Alice, PG char, PG kanan, basilisk starer, clay doll, criminal clown, torturer

- Total Treasure Chests = 106

- In final boss battle, defeat opponent within 40 turns for +5 RP
- Enemies: Lapis?, Emperor, Emperor (2)

- Enemy: McBurn

- Escape within 3 minutes for +3 RP

MAINZ TUNNEL PATH
- 2 treasure chests
- Enemies: tail jumper, spike gellar, budidge, tri-attacker V2, tri-attacker SS

MAINZ MOUNTAIN PATH
- Area 3: 2 treasure chests
- Enemies: luminous rat, rockbuster, abyss worm, EDF soldier - sword (1), EDF soldier - rifle, EDF soldier - sword (2)

MAINZ MINING VILLAGE
- Buy redbrick curry in the inn

MAINZ TUNNEL PATH
- Enemy: Helmord

MAINZ MOUNTAIN PATH - MOON TEMPLE AREA
- 1 treasure chest
- Enemies: giant organ, vulcanus abyss

MOON TEMPLE
- Area 1: 3 treasure chests
- Area 2: 4 treasure chests
- Area 3: 4 treasure chests
- Area 4: 1 treasure chest
- Enemies: EDF soldier - sword (1), EDF soldier - rifle, EDF soldier - sword (2), thunder doven dovon ace, sneak gunnder G-0, sneak gunner R-0, sneak gunner M-0, phalanx Ω, kijimunmon, abyss sprite, dark widow, babylonian arms, afterglow vessel, shadow vessel, adeptus, Ol-gadia, baleful raider

Total Treasure Chests = 123

- Enemies: al-lat lugh, Ilya

LAKE ELM WETLANDS
- Area 1: 1 treasure chest
- Area 2: 5 treasure chests
- Fishing spot
- Enemies: ice drome, meteor sparrow, death pisces, stealthskulk shark, astral domina

BEACH
- Fishing spot

WHARF
- Fishing spot

MISHELAM CENTER
- Buy marbled steak in restaurant for recipe

VILLA
- Enemy: EDF soldier - sword (1), EDF soldier - rifle, EDF soldier - sword (2), black doven, Gespard Gerrod Σ

MISHELAM WONDERLAND
- Collect missing parts
- Score at least 7000 points on Horror Coaster for +2 RP

BEACH
- Collect last part
- Enemy: gargoylorus

MISHELAM WONDERLAND
- Enemy: Mecha Mishy

- There are a number of enemies in the Castle of Mirrors that are scanned automatically upon defeat. I did not add them to the enemy list.
- Area 1: 4 treasure chests
- Area 2: 3 treasure chests
- Enemies: oberoach, speculo I, speculo II, mein gada S, dog mummy, grimblade, moon guardian, sun guardian, star guardian, weiss clown

Total Treasure Chests = 136

- Enemies: zoa balor, Masked Swordsman

KNOX FOREST PATH
- Area 1: 3 treasure chests
- Fishing spot
- Area 2: 2 treasure chests
- Enemies: EDF soldier - sword (1), EDF soldier - rifle, EDF soldier - sword (2), Duvalie, homing mold, army chamaleon, habanalien GG, murder scales, tainted stallion

POLICE ACADEMY
- Enemy: Divine Blade of Wind?

THIRD STRATUM
- 1 gold, 5 blue, 3 red sealing stones
- Manly Munchies - Rustic Bone book in random chest
- Trial key 3, 4, 5
- Enemies: Shadow Spirit, spiral clotho, ruin spinner, rostrum, shield dwarf, blurred shadow, el cubile, lucifuge, Hollow Aurier, Hollow Matteus, rolling stone, dracol - sword, dracol - staff, soul eater, mother billgasso, billgasso, false abaddon, queen rostrum, rostrum pallas, modreian, melphegor

- Area 1: 4 treasure chests
- Area 2: 5 treasure chests
- Defeat super regenenkopf for +5 RP
- Area 3: 3 treasure chests
- Enemies: vampskipper, latern spider, thunder doven, gun buster type-B, proto tron regenenkopf type-II, super regenenkopf, shigure satellite

Total Treasure Chests = 153

- Enemies: Emperor Dogma, Emperor Dogma (2)

CROSSBELL
- Enemies: EDF soldier - sword (1), EDF soldier - sword (2), EDF soldier - rifle, helmord, D-Bestial, asmodyne menace, Rufus (1), Ilya, Rufus (2)

FOURTH STRATUM
- Manly Munchies - Cocktails, Manly Munchies - Tom Yum Goong
- Trial Keys 6, 7, 8
- Enemies: ripper noa, ancient dogger, nyarlathotep, turdragon, lilith domina, sudorudo giza, curascylla, gormenghast, laomedeia scylla, oozetilus, Hollow Garcia, Hollow Rutger

ORCHIS TOWER
- Talk on 35F to Gaius for his note

ADMINISTRATIVE DISTRICT
- Talk to Jusis AND Millium in the Civic Center for their notes
- Talk to Elliot/Emma/Scarlet for their notes

HARBOR
- Talk to Vivi and Rex for their notes
- Talk to Laura and Fie for their notes
- Buy hard genkotsu ramen from the ramen stand

EAST STREET
- Talk to Michel/Sara in the Bracer Guild for their notes
- Talk to Becky and Hugo in the Business Owner's Association for their notes

CENTRAL SQUARE
- Talk to Zeit on the SSS roof for his note
- Talk to Sergei outside of the orbal store for his note
- Buy nature breeze pasta from the cafe
- Buy Crossbell Times - Emergency Special from the department store

WEST STREET
- Talk to Renne for her note

GEOFRONT B SECTOR
- Examine the terminal in the depths

EAST CROSSBELL HIGHWAY
- Area 1:1 treasure chest

ANCIENT BATTLEFIELD
- Defeat monster in depths for +5 RP
- Pickup black zemurian ore shard after defeating boss
- Enemy: heidrun

MOON TEMPLE
- Defeat monster in depths for +5 RP
- Pickup black zemurian ore shard after defeating boss
- Enemy: unsurtr malice

WEST CROSSBELL HIGHWAY
- Area 1: 2 treasure chests
- Fishing spot
- Enemies: cool pom, rainbow mosquito, scorpion king

KNOX FOREST ROAD
- Defeat wanted monster for +3 RP
- Pickup black zemurian ore shard after defeating boss
- Enemy: ginosha-zanak

POLICE ACADEMY
- Talk to Dudleyin prison depths

URSULA ROAD
- Area 1: 3 treasure chests
- Fishing spot
- Area 2: 4 treasure chests
- Fishing spot

STARGAZER'S TOWER
- Defeated wanted monster outside for +3 RP
- Pickup black zemurian ore shard after defeating boss
- Enemy: grunoja

URSULA ROAD
- Area 3: 5 treasure chests
- Fishing spot
- Enemies: saccharine tomartian, nauseating tomartian, goldflier, spineedler, harpoon hornet, killer shmark, massibrus, forest snail, simiamanita, bracken monkey, cauliflamonkey, ganpam ossa

ST URSULA
- Talk to Linde for her note

UNDERGROUND FREIGHT LINE
- 4 treasure chests
- Defeat wanted monster for +3 DP
- Pickup black zemurian ore shard after defeating boss
- Enemy: goliath lugh

LAKE ELM WETLANDS
- Area 1: 3 treasure chests
- Fishing spot
- Defeat wanted monster for +3 DP
- Pickup black zemurian ore shard after defeating boss
- Enemy: galliosaurus

MISHELAM - CASTLE OF MIRRORS
- Talk to Rosine in depths for her note

Total Treasure Chests = 175

RETRIBUTIVE TOWER
- 2F (team A): 7 treasure chests
- 2F (team B): 7 treasure chests
- 3F (team A): 7 treasure chests
- 3F (team B): 7 treasure chests
- Enemies: zero warrior, zero sorcerer, zero timelord, gun buster type-A, gun buster type B, gun buster type C, gundharva, ancient dogger, harpy, sneak gunnder G-0, sneak gunner R-o, sneak gunner M-0, Gespard Gerrod Σ, divine delf, weiss clown, ygd vana, ygd vats, magic knight sigheim, magic knight regulus-zamiel, cubile, El cubile, tri-attacker v2, tri attacer SS, dovon ace, pale apache X, aurgelmir, torturer, plutus bennu, angry maggot, magic knight dynagram, magic knight isra-zamiel, melphegor nix, cubelion telos

RETRIBUTIVE TOWER - CORE
- Enemies: Ishmelga Rean, Ishmelga of the End

FOURTH STRATUM
- 2 gold, 6 blue, 3 red sealing stones
- Trial keys 9, 10
- Enemies: star cryon, dancing maiden, crescent knight, twin bite, brilliant arms, zaphkiel, arachne zigma, regna bersel, seah unsurtr, meghidoradon, ark kaitos

GARDEN
- Unlock the white sealing stone and playthrough the daydream to unlock an achievement

Finish up any remaining achievements that are incomplete. You may choose to continue on through the 5-8th stratums, but they theoretically aren't necessary to reach 100% with the game.

The End