''Seal Online'' is a [[AllegedlyFreeGame free-to-play]] MMORPG from South Korea developed by Grigon Entertainment, which also developed ''FusionFall'', and is mostly published by YNK Interactive. It is based on the 2000 RPG PC game ''Seal:Travelers of Destiny''. It was releashed way back in 2003 for Korea, then releashed in other regions. It was originally going to be released in the United States in 2005 but the website [[ExecutiveMeddling was shut down without notice]]. 2 years later, [[UnCanceled it came back]] to the USA sucessfully. The game got rebooted on 2010 to clear every user data for the Eternal Destiny update, usually making veterans fustrated. The game was once again in a major update on June 2013, as ''Blades of Destiny''. You can download it [[http://sealonline.playrohan.com/main.html here]].

The name of the game probably comes from a wizardry performed in the game's backstory used against the Balies. The game is a typical point-and-click MMORPG game set in the land of Shiltz featuring eight classes in which players must defeat the [[OurMonstersAreDifferent Bales]], monsters created by Balie's magic. The game has a combo system usually used by melee classes by using the A, S, and D keys.

!!This game provides examples of:
* AnachronismStew: The game is in a medieval fantasy setting, but some enemies bear objects beyond that period like machine guns, electric guitars, drills, and much more...
* AnAdventurerIsYou
* BalefulPolymorph: Literally, since Eternal Destiny, the player can turn into a bale by potion.
* BigBad: Balie started the existence of all monsters in the game.
* BlindIdiotTranslation: There are several translation mistakes in the dialogue.
* CoolPet: The game has an extensive pet system that includes a dragon, a monarch chicken, and even a Valkyrie.
* CriticalHit: Possible to perform it and if the monster does it, it will speak.
* CuteIsEvil: About everything cutesy-looking in this game (Except pets and most [=NPC=]s) is at least an enemy.
* DudeLooksLikeALady: The bale Mr. Catfish wears lipstick and slippers despite being male.
* EnemyChatter: Bales can talk, like when they perform a critical hit.
* ExorcistHead: A non-horror example. The White Rose pet and its recolored variant can do this, while spinning its head on the neck.
* GreatOffscreenWar: The war between the Elims and Balies that lasted for 7,000 days in the Genesis of Shiltz.
* KillerRabbit: The Rascal Rabbit is a literal one but is not that dangerous when the player is at least around in its level.
* GuideDangIt: The main quests can be difficult to progress without a guide.
* LevelGrinding: The game has this like other MMORPG's.
* LighterAndSofter: It looks alot more lighter than the game it is based but still has its darker moments.
* MamaBear: Literally. Mama Bears are Bales.
* MascotMook: Rascal Rabbit but moreso piyas.
* MixAndMatchCritters: There are pigs with bat wings.
* OrganDrops: You can get organs from certain enemies like bear galls, eyeballs and teeth.
* OurMonstersAreDifferent: The monsters are called Bales, which is named after the in-game lore deity Sakiel Balie.
* PaletteSwap: Several enemies and since Eternal Destiny, all pets have recolored counterparts, with different stat distributions.
* RidiculouslyCuteCritter: Many pets are like this.
* SceneryPorn: The environment is comprised of colorful cartoony scenery.
* ShoutOut: The Bat Guy mask is a direct reference to a certain [[{{Franchise/Batman}} well-known superhero]].
* SomethingAboutARose: There are usable roses as weapons. Also the consumable roses and the rose pet in some extent.
* SunnySunflowerDisposition: The sunflower pets and their palette swaps.
* TwentyBearAsses: Almost all quests are this.
* VideoGameCrueltyPotential: Should the player not feed or play their pet, it will die or run away.
* WolverineClaws: The accessory Murderer's Claws, which looked like that the player gain bloody claws if equipped.