The Book of Claude: Tales Edition
Chapter 1: Why Final Fantasy DOESN'T equal Tales
Let us start by using the first five MAIN installments of Final Fantasy and Tales.
Final Fantasy I -> Final Fantasy II -> Final Fantasy III -> Final Fantasy IV -> Final Fantasy V
What do these games have in common with each other? Not much. Just recurring themes like Chocobos, Moogles, Cid, Airships, battle system, the development team, etc. Final Fantasy games aren't related. They don't even acknowledge each other. Until recently, there hadn't been a Final Fantasy that took place in the same universe.
Now, for Tales.
Tales of Phantasia -> Tales of Destiny -> Tales of Eternia -> Tales of Destiny 2 -> Tales of Symphonia
Pay attention. The two in bold are important.
Tales, like many RPG series, creates new worlds, characters, and storylines between most main installments. Keyword: Most.
Tales of Destiny 2 is a DIRECT SEQUEL to Tales of Destiny and is the 4th installment in the main series. Tales of Symphonia is a PREQUEL to Phantasia and the 5th installment. So where does Ratatosk Knight fit in? It doesn't because it's a gaiden, and I'll explain later on.
Final Fantasy X-2 may be a direct sequel to FFX, but notice that it isn't called Final Fantasy XI. Final Fantasy continues to create new universes and characters per main installment, while Tales has no qualms with revisiting certain universes in its main installments. Therefore, Final Fantasy =/= Tales.
End Chapter.
Chapter 2: Tales Gaidens and How they Work
For the purpose of the chapter and for better understanding, I'm going to narrow this selection down to one other gaiden besides Ratatosk Knight - Tales of Phantasia: Narikiri Dungeon. ToP:ND is the first Tales gaiden ever created and as such, was the first to establish the formula that Tales gaidens have followed to date.
First I'll list features found in Tales gaidens, then apply them to Narikiri Dungeon and then Ratatosk Knight.
Tales Gaidens
Takes place after a main game
Introduces two new characters: One male, One female
Features the return of the cast in side character roles
Features new experimental concepts around the core Tales gameplay. These features generally never make it into the main series.
Story-wise, explores aspects of the main game's plot that aren't mentioned or covered in detail
Tales of Phantasia: Narikiri Dungeon
Takes place 100 years after Tales of Phantasia
Dio (Male), Mel (Female)
Phantasia cast (Cless, Chester, Mint, Klarth, Arche, Suzu) returns. They are not playable.
Randomized dungeons and using clothing to class change (hence the title, Narikiri Dungeon)
The game focuses on the Mel and Dio's redemption of their past lives on Derris-Kharlan, which is relevant to Phantasia (and Symphonia, to an extent).
Tales of Symphonia: Ratatosk Knight (or Knight of Ratatosk, whatever it's called until there's a confirmed US name)
Takes place 2 years after Tales of Symphonia
Emil (Male), Marta (female)
Symphonia cast returns. Whether they're playable or not hasn't been announced, but I wouldn't be surprised if they're not.
Monster breeding, and most likely more features not yet announced.
??? - Not enough known about the plot yet, but judging by the subtitle (Ratatosk), it's going to have something to do with Yggdrasil...or at least the Yggdrasil Tree. Either way, the plot is going to be A LOT more relevant to Emil and Marta than to any of the Symphonia cast.
*** - It has a point and click map. Now, I don't consider this a deciding factor by any means, but I haven't played a Tales gaiden that DIDN'T have a point and click map, and the main games don't.
I could have listed more points, but there's still a lot that isn't know about ToS:RK just yet. On the other hand, the fact that what little was announced about it places it so neatly in the Tales gaiden mold says enough on its own. Not all Tales gaidens follow the guide perfectly. Some diverge ever so slightly, but for the most part, if you can apply these rules to a Tales game, then you know it's a gaiden...though that's usually made clear when the game is announced.
I hope I enlightened some people about what a Tales gaiden is. It's really not that important, since I'm picking the game up on Day One, but it simply isn't Symphonia 2...which means that an ACTUAL Symphonia 2 can and probably will be made in the near future.
End Chapter.