This article talks about the game "School of Dragons. For the in-game location itself, see School of Dragons (Location)
School of Dragons (SoD for short) is an 3D MMO game (released in July 17th, 2013) made for a web browser based on the hit 2010 movie, 'How to Train Your Dragon'. Dreamworks Animation team has teamed up with JumpStart, using Knowledge Adventure software to bring us a game where players can create their own character and bond with their own chosen dragon as they explore different islands and complete quests to help the protagonist of the movie, scrawny teenager Hiccup, his dragon, Toothless, and his friends. Players assume the role of a Viking and their own adventures as they train with their dragon, explore new areas, and complete quests.
Gameplay
Platforms
School of Dragons can be played in your browser, on Steam, on the mobile app, or on your computer if you choose to download the game. Google Chrome and other Chromium browsers do not support the Unity 3D plugin, so players using those browsers must switch to an alternative browser, download the game, or play through Steam.
As for current updates, Firefox has falled into the same problem as Google Chrome and now it won't display the game.
Multiplayer
School of Dragons is a MMORPG (Massive Multiplayer Online Role-Playing Game), meaning it comes with all the features of a multiplayer game: chatting, friends, races, and more! You can add players as your friend, visit their farms, invite them to race, or play other minigames with them. Additionally, you can join a clan or create one of your own for more fun interactions. For those with slower machines or who just want the experience of adventuring alone, multiplayer mode can be turned off completely to improve performance and make other players invisible to you.
Customization
The game offers many opportunities to customize your account and immerse yourself into the world of How to Train Your Dragon. In addition to customizing the clothing and physical features of your Viking and the colors of your dragons, you are also provided a farm where you can add decorations and tools to your liking.
For more information on creating your character, go to Creating a Character.
Your first dragons
As for v2.3.0, players will receive a Second Starter Dragon as well as receive a Primary Starter Dragon which will grand the players the Stable Missions and an easier way to travel while completing the quests.
Story
It seems like you arrived at the wrong time because Berk is under attack! Help Hiccup, Toothless and his friends defeat the malicious Dragon Hunters and rescue the caged dragon. In this tutorial, you will be able to ride Toothless, shoot down ships with him, and, in the end, you can even tame the rescued dragon!
After rescueing the caged dragon, you'll learn about ther Scientific Metheod and learn how to fish in the process. Then, you'll be teleported to The Hatchery and all you gotta do is answer the Personality Quiz that will choose the recommended primary dragon for you-- it's just a suggestion, however, you can choose which of the four dragons (seven dragons if you're a member) you'd like to have as the second dragon.
Once you've chosen your partner dragon, head outside and talk to Hiccup. Once you've completed the game's first quest, many more will open up for you and, with them, increased access to the game world. While not really a sandbox game, once you've got a single adult dragon, capable of flight, the game world becomes yours to explore and play in how you like.
And, with the inclusion of the Expansion Pack, it will not only grand you quests with massive amounts of XP and Coins, it will also unlock even more locations for you to explore.
Experience Points
Your character and dragons level up through the process of gaining experience points, referred to in-game as XP. Currently, there are five different types of experience points:
Adventurer XP 
Maximum level: 35
They can be earned through quests.
Dragon Bonding XP 
Maximum level: 30
They can be earned through quests, Stable Missions, Battle events, Flight Club, Thunder Run Racing, Fireball Frenzy, and the minigames Eel Roast and Alchemy Adventure.
UDT (Ultimate Dragon Trainer) 
Maximum points: 400,000
They can be earned through quests, Stable Missions, Battle events, Flight Club, Fireball Frenzy, and Alchemy Adventure.
Fishing XP
Maximum level: 30
They can be earned by catching fish, and rare few quests.
Farming XP
Maximum level: 30
They can be earned by growing crops and gathering animal products, completing farming jobs at Johann's stand, and rare few quests.
Currency
Coins
The Basic currency in SoD, there are numerous ways to earn them, all listen in its respective page.
Gems
The Premium currency in SoD and quite difficult to acquire (despite the various ways of getting them). You can also see the numerous ways to earn them in its respective page.
Membership
Memberships can be purchased for USD in one month, three month, six month, and 12 month packages and the Trial for 500 
. These account upgrades provide unlimited access to all game content including the expansion packs as well as 20% off all store items, double dragon energy, 500 free gems monthly, and much more! Players who purchase 3 month, 6 month, 12 month memberships or the Trial are gifted their very own Toothless to ride and train, and this is the only method to obtain Toothless on your game.
Check the Membership page for more information.
Expansion Packs
The game released its first expansion pack on April 24, 2015. In addition to new islands, quests, and a dragon species, Icestorm Island also includes two new animals and four new crops for players' farms, an aspect of expansions that has not yet been repeated.
The second expansion pack, Call of the Death Song, was released on August 27, 2015 as part of versions 1.14 of School of Dragons. Focusing on locations from Dragons: Defenders of Berk, completing certain quests from this expansion gives players one each of the then-new Death Song and Razorwhip species of dragons. This was the first expansion pack that allowed all players access to the first of it's new areas regardless of whether they'd otherwise gained access to the new areas.
On December 12, 2015, the Battle for the Edge expansion pack was released ahead of the premier of the third season of Dragons: Race to the Edge. In addition to new quests, areas to explore, and dragons to add to the stables, this expansion pack also included the Viking Hideout, a new area that player's could customize to their liking. In the same manner as Call of the Death Song, the first of the new areas released with Battle for the Edge in available for all players to visit. For those who didn't wish to purchase the entire expansion pack, access to just the Hideout itself was made available for 200 gems in the Expansions tab inside the Trading Post. Hideouts were billed as a major highlight of this new expansion, to the point of receiving their own contest on the official School of Dragons forum.
The next expansions (Return to Dragon Island, The Secret of Leviathan and Rise of Stormheart respectively) were released in a similiar manner: Released ahead of the premier of the other seasons of Dragons: Race to the Edge. The Secret of Leviathan gave the introduction to two minigames, Cogs and Incredible Machine (both pages still on work in progress) and the minigame idea in general. The idea of adding a minigame grew bigger with the release of Rise of Stormheart and its minigame, Dragon Tactics.
Previously, you had to complete both the beginning Tutorial and the "Lesson: No Toilet Paper" quest to see the Expansion Pack starting quests. Now, as soon as you complete the tutorial, you have access to the Expansion Packs. However, some Expansion Packs (Icestorm Island, Return to Dragon Island, and Secret of the Leviathan) take place in the Wildernes, so it is best for players to complete "Lesson: No Toilet Paper" before moving on.
History
The game's timeline has since evolved with each new HTTYD movie and TV Season, having several phases, which were Riders/Defenders of Berk, Race To The Edge, and now HTTYD 2.
Since the game's release, an entire series of starting quests were removed from the game. Those early quests provided players with more information on the in-game controls, as well as a cinematic scene where players got to ride with Hiccup on Toothless after having missed the boat from Berk to the school. The removed segment went like this:
- After customizing their Viking, players started the game on a boat dock. In front of you, Gobber the Belch was standing there, and gave you your first Quest. He would tell you that the boat to the School of Dragons is about to leave and that you should hurry before you miss it. As you ran down the dock, the boat would be moving away, and Gobber would tell you that you had missed it. Hiccup would also be on the docks, just about to fly with Toothless to the School, and might be able to give you a lift. When you talked to Hiccup, he'd say that he'd be happy to fly you to the school, and then asked if you wanted to fly Toothless yourself to the school.
- After flying on Toothless, Hiccup would instruct you to go into the Hatchery, where you will be able to choose your own dragon. A player would then enter the Hatchery and the game would proceed from what is now its current starting point.
The old introduction had to be redoned due to players being unable to unlock the Stable Missions which required 2 Dragons to unlock it.