Tours are short sidequests involving unique moments with Noctis and an ally. When resting at a specific camp, an ally will ask for Noctis's help the following day, and if accepting it, Noctis will help them the next day upon waking. Tours involve a simple task, often following on screen prompts, and reward the party with 20 AP.
If the player camps at the haven near Vesperpool with a full party, Gladiolus will ask for him and Noctis to go fishing for the legendary Liege of the Lake in the Vesperpool the next morning. Complying triggers a quest for the fish. The tour is completed once the player catches the Liege; quitting fishing puts them back at camp, but the tour can be restarted at any time by camping at the same haven again. It is possible to catch the Liege outside of the tour when fishing at the same spot.
The "Liege of the Lake" is one of the toughest fish to catch. It is a hidden fish (not marked on the radar while fishing) lurking in the top left corner of the fishing area. It can be caught with the 10,000 Needles Gold Cactuar lure that can be bought at the shop at the same fishing spot. It will appear regardless of weather. It will struggle almost all the time when caught. It is best to use the best fishing line, an upgraded rod and reel, and to have Fishing Level 7 or above. The player should continually tilt the analog stick the way the fish swims, and looking at the fish itself rather than the button prompt can be a better method, although this is not so easily seen if it is raining. The player must be patient and only reel in when the fish is not struggling (the controller doesn't vibrate). Tapping the reel in button can work better than holding it, to save line. Because the fish struggles so much, there are only short windows for reeling.
Catching the fish yields the Big Blaze Bahamut lure, which is special as it will return even if the line snaps.
Rescues require the player to locate trapped individuals found throughout Eos, and save them with a restorative item. These missions are not flagged until the player moves within a close proximity of the individual.
Broken Cars quests require the player to assist stranded drivers by the roadside, by providing them a Repair Kit. Like Rescues, they are only flagged when the player reaches one of the drivers and when the quest is unlocked.
Dave Auburnbrie, unlike many non-player characters, changes his position after each sidequest, and can be found at different outposts depending on the last sidequest completed. His sidequests involve obtaining a dog tag, often surrounded by creatures to kill first, and rewards useful restorative items. The tag is found somewhere within the circle on the map when the quest is active, and glows yellow on the ground.
Cid's sidequests allow weapons to be upgraded. After completing Cid Sophiar, Master Mechanic, Cid can offer a sidequest to upgrade each weapon that bears the "+" upgrade icon. The player must retrieve both the weapon and the specific part to upgrade it, and once taken to Cid, will be upgraded after fulfiling a specific number of quests or hunts, then resting at a camp or lodging. Cid is found in Hammerhead, except between chapter 06 and the end of chapter 09 in which he is found in Cape Caem.
1,000 EXP, Ultima Blade (after completing three quests or hunts)
This requires the Sturdy Helixhorn to upgrade. It can be obtained by breaking Duplicorn's horn (75% rate). The player can lock onto it and then warp-strike from a distance. After giving both to Cid, three quests or hunts must be completed before the weapon is upgraded.
This requires the Coeurl Whiskers to upgrade. It is dropped either by Coeurl (50% rate) or Elder Coeurl (100% rate). After giving both to Cid, one quest or hunt must be completed before the weapon is upgraded.
This requires the Cactuar Needle to upgrade. It can be found south of Vesperpool, dropped by the Slactuar (100% rate). After giving both to Cid, two quests or hunts must be completed before upgrade is ready.
This requires the Magitek Core. It can be found in Gralea, dropped by MA-X Dux (100% rate), or by MA-X Patria (3% rate). After giving both to Cid, two quests or hunts must be completed before upgrade is ready.
The first fishing quest requires Noctis to catch a Crag Barramundi. Fishing buddies quest is located next to the marshy waters north from the Wiz Chocobo Post, south from the Coernix Station, in Duscae.
The Fishing Naturally quest requests Noctis to catch a Cherrycomb Trout. Navyth, the quest-giver, is located west from Lestallum; following the road to the west, the player will cross the river. Navyth will be fishing near in the vicinity of the Mynbrum Haven campground.
The next quests requires for Noctis to catch the rare a rare fish Vesper Gar. Navyth is found at the Vesperpool, in the northwestern part of the map. Vesper Gar has a long, thin body, and is marked with a blue mark on the mini map. After casting the line the player should pay attention to the fish below the surface and look for the Vesper Gar. Suitable lures include: Stinker: Malboro, Stinker: Malbodoom, and Ranker Tonberry.
For completing the quest the player will get 3,000 EXP and the Invincible Iron Giant lure that sinks when reeled in and floats when tension is released.
Navyth's last quest at Galdin Quay has Noctis catch the "Devil of the Cygillan" (Murk Grouper). Navyth is found on the beach. It is best to be at least level 7 in fishing. The fish won't be visible on the minimap, but it can be found on the spot nearest to Navyth during daytime by casting the line to the middle of the fishing area, or a little to the right. If the player spots a giant fishing lurking under the surface, they have found it.
Suitable lures are the ones that sink, but an especially good fit is the Burrower: Abyss Worm. It will be a tough battle to reel in the fish, as it will struggle a lot (water is splashing and the controller vibrates). The player must not reel when the fish struggles, but there might only be short windows for reeling as the fish fights back most of the time. Tapping the reel button tends to work better than holding against fish that struggle a lot. Because the fish is so big, it wears down the line fast, and thus the player needs good technique and equipment to catch the fish.
Completing the quest yields 5000 EXP along with the Tranquility rod (290 defense).
Once chapter 15 is reached and four optional dungeons Balouve Mines, Crestholm Channels, Daurell Caverns and Costlemark Tower are completed, these sidequests can be commenced by speaking to Ezma at the Meldacio Hunter HQ. She will grant Noctis the key to breaking many seals found within dungeons which lead to rooms underground filled with powerful monsters and a large boss at the end. While they do not offer EXP on their own, the dungeon's rooms itself often contain many useful items, accessories and weapons (among the strongest in the game), while the enemies yield substantial EXP rewards.
Each dungeon features several sections with random rewards and enemies. There are times in which camps are available, and times in which the paths branch out three possible directions, of which only one is correct and will progress the party further into the dungeon.
There are two camps. After the first camp, paths branch out twice; the first time the player must take the path leading right, the second time they must take the middle path. After the second camp, the next time there are branching paths, the player must take the left path.
Defeating the final boss will earn the player the Firearm Executioner.
This quest requires the player to defeat the Bennu. It is weak to Polearms, Machinery and Lightning, meaning that Noctis should equip the best Polearm to fight it, infused with Lightning from Ignis' Enhancement, and fought with aerial combos. After completing it, the player will earn the Iron Duke.
This quest requires the player to defeat a Malbodoom, which is surrounded by Malboro Brat minions. It is weak to Daggers and Ice, meaning Noctis should equip his best Daggers infused with Ice by Ignis. The best opportunity to deal damage is during Malbodoom's Bad Breath by attacking it from behind. The Malboro Brat minions mostly serve as a distraction and should be avoided if possible.
This quest requires the player to defeat two Sir Tonberries at night time outside the Tomb of the Tall. They are weak to Daggers and Light, meaning Noctis should equip his best Daggers, with the Light-infused Orichalcum being a solid choice. Due to the rapid speed of the Sir Tonberries, the player should defend consistently and focus on parrying them to deal damage. When only one Tonberry remains, the player may choose to fight more offensively.
This quest requires the player to defeat a large Phalaris. It is weak to Greatswords, meaning Noctis should equip his best Greatsword and Gladio should use Techniques against it often. It is not possible to defend against Phalaris' hoof stomps, meaning Noctis should roll constantly to try and avoid it and attack its hind legs. Using Prompto's Piercer Technique is effective as it can reduce its armor.
The final Legend, the Naglfar is fought at Fort Vaullerey, which resists all weapon types but is weak to all elements. This means that the player should focus on creating the best Elemancy spells to use against it. By creating spells with Zu Beak items, the player can create multiple spells which break the damage limit. If Noctis equips the right weaponry and eats the right meal that boosts his Magic, using these spells against the Naglfar can deal 99,999 damage, meaning ten spells should be used.
Let Sleeping Mountains Lie is the mandatory quest to unlock the fight with Adamantoise, the biggest enemy. If the player returns to Lucis via Umbra, this quest will be automatically added when Cindy calls Noctis about strange earthquakes. Upon being talked to in Hammerhead, she will redirect the party toward Dave in Longwythe Rest Area.
When approached, the player will be teleported in the local Crow's Nest restaurant, where a number of characters will be waiting, having rallied the place after hearing about the quakes. Each will give the player an item to help during the fight to come. Up to 14 characters can be present, but only those the player encountered will appear. A prompt will indicate the player how many characters are present out of the 14 possible. There are no special reward for assembling all 14, apart from collecting more items.