MMORPG with storyline the same as HtTYD2. You customize your character and unlock new features as you progress through the game, take a test to match you with any of the canon (movie) species of dragons or choose a partner for yourself, have the option to hatch a dragon and customize it (like colors and a few skin patterns) or befriend a wild dragon but not have the ability to customize (you still name it of course).
In order to befriend and train your chosen dragon (hatchling or wild), you must follow the steps to train that specific species, such as playing with light-reflections or dragon nip and etc. Once a strong relationship is built, and if the dragon is old enough to fly, you can take to the skies. At that stage, you can test your skills together from search-and-rescue to battle training. You will also have to finish some solo (no dragon involved) training before being able to progress through the story, like
Spoiler: click to toggle
when the discovery of Valka's dragon sanctuary happens.
Free-flight/free-wander modes will be available throughout the entire time in the game except during important or timed quests. Explorable areas include lands and tribes discovered in HtTYD 1 and 2 and in the tv series. If you want to get to one place to another that are far apart from each other, you can take the long and scenic route there by walking/sailing/flying, or taking a "speed flight" (only unlocked when your dragon can fly) which is like teleporting.
Some quests require teamwork (friends) to complete. Guilds (clubs) can be created for your friends or anyone interested in joining.
Once you've completed the story-line, you can keep playing and role-playing with friends for as long as you like. New post-story quests will be unlocked and available to take on, and you will receive special and unique items.
You can trade items with friends, buy items at a shop with gold or trade with Trader Johann.
The game is completely free, but certain exclusive items can only be bought with real money. The cost will be $0.45-$1 per single item, and $2-$5 per package. Items/packages for farming, housing, equipment, healing, and food. You don't have to buy these in order to beat the game, however.
Game will be available worldwide, and when paying for items/packages, currency will need to be converted. Languages will include English, French, Spanish, Portugese, German, Italian, and Chinese.
Mods can be made by players and installed independently. Updates to the game will be made whenever there is one, including seasonal undates (i.e. Snoggletog). Any bugs can be reported on the game site's forum.
The sad part is, this game would take a REALLY long time to make considering there are so many features.
Lastly, I congratulate you for reading this far. o_o