I'm happy to announce that Vorkath is now officially released! It has 100% OSRS combat mechanics so a good reference guide can be found here. It was a ton of work but I feel that the time invested was well worth it as it is now a permanent feature of Draynor where no corners were cut and will be enjoyed for many players to come! It is a very fun boss that constantly keeps you on your toes and plenty of 'oh sh*t' moments
To get here you can teleport to ::train and just run west to the Pier and you will find the Sailor. Alternatively, if you have the fremennik sea boots 4 (dropped by Wild Krab), they will teleport you directly to the ice crystal that you hop over to enter Vorkath's lair. This saves you about 15 seconds of running each time.
Some basic tips:
Acid pool/fireball special attack: Keep your run off and set far waypoints on the map so that you're character is never close to stopping as you will take massive damage standing still and its not enough to just alternate between 2 tiles
Crab special attack: Crumble undead is the best thing to use as it will kill it in one shot 100% of the time. Once you see Vorkath use his white dragonfire/ice barrage on you, spam click the ground so that you don't continue attacking him or else this will add combat delay to your spell and then the crab will explode before you can kill it
You need anti-posion for the venom dragonfire
Antifire/extended antifires help, and any kind of anti-dragon shield
DWH/BGS are a good idea to lower his defence
Single fire bolt attack: If you stay on the same tile you will be instantly killed as it deals 115 damage. 1 tile away you will take 57 damage, 2+ tiles away no damage taken
Things that were added:
Melee attack: If players are in range, he swipes at the player with his wings/claws (slash-based).
Magic attack: Launches a bright-blue projectile at the player. Protect from Magic completely negates damage.
Ranged attack: Launches a spiked ball at the player that hits up to 32 damage. Protect from Missiles blocks this attack.
Dragonfire: Multiple dragonfire types.
Venom Dragonfire: Dragonfire that has a chance to inflict the venom status if not venom immune.
Pink Dragonfire: Dragonfire that disables all prayers upon impact.
High-damage Dragonfire: Vertically launched dragonfire at the player's position when cast. Deals up to 115 damage, but is halved if the player is next to the targeted spot when the dragonfire lands. Red = death, orange tiles = 57 damage, green area and beyond = safe.
After every six attacks, Vorkath alternates between one of two special attacks:
Poison Pool Quickfire Barrage: Launches acid around the arena and proceeds to fire a barrage of 25 dragonfires at the player. Any damage taken while standing on the acid heals Vorkath for the same amount; up to 10 damage per tick. Should the player stand still, the dragonfire barrage deals 30-40 damage per hit regardless of prayers. Additionally, Vorkath takes 50% reduced damage until the special attack ends.
Zombified Ice Dragonfire: Vorkath freezes the player in place with damageless ice dragonfire, summons a zombified spawn, and is immune to all damage while the spawn is alive. The spawn moves approaches the player and, if not killed first, explodes on impact dealing up to 60 damage scaling off of its remaining Hitpoints. Players should queue the Crumble Undead spell and cast on the spawn as soon as it lands to prevent damage during this special attack (it will one hit the spawn 100% of the time). Once the spawn is killed, the special attack ends which frees the player and removes Vorkath's immunity.
Crab spawn locations (Green lines are the boundaries where the player can be for the spawn locations (crab spawn is X)) Maybe not the best diagram but basically it will spawn in the corner of the side you're on
Replaced loot 25 barrows chest with kill 100 vorkath achievement
Added him as a slayer task (and count as a blue dragon task)
Added him to the slayer task reset form
Added assembler max cape and ability to create it by using an assembler on a regular max cape, equipment stats
Added the thieving/mining cape perk to it and also the drop rate boost
Added ava's accumulator assembler, functional in combat, ability to make it, equipment stats
80% chance of retrieving arrows
Added guaranteed 50th kill vorkath's head drop (used with ava accumulator to make assembler)
Added turquoise slayer helmet, functional on slayer task, ability to make it (Vorkath's head + slayer helmet), equipment stats
Add dragon bolts/(e) & ability to fletch them
+122 range strength, shot by armadyl and dragon hunter crossbow
84 fletching to create them
Sailor in Rellekka to travel to and from the island, located just west of ::train at the pier
Fremennik sea boots 4 (dropped by Wild Krab) teleport you directly to Vorkath's island (saves the 15 second run every time)