According to Wikipedia,MMORPGs means Massively multiplayer online role-playing games
are a combination of role-playing video games and massively multiplayer online games in which a very large number of players interact with one another within a virtual world.
As in all RPGs, the player assumes the role of a character (often in a fantasy world or science-fiction world) and takes control over many of that character’s actions. MMORPGs are distinguished from single-player or smallmulti-player online RPGs by the number of players able to interact together, and by the game’s persistent world (usually hosted by the game’s publisher), which continues to exist and evolve while the player is offline and away from the game.
These games are MMORPG:
1. Ran Online
2. Dragon Nest
3. Elsword
4. Ragnarok Online
5. World of Warcraft
When you play a certain Massively Multiplayer Online Role-Playing Game, For example playing Ran Online/Dragon Nest, you’ll create a character through selecting a class, gender, face, hairstyle, haircolor, and In Game Name and before that you need to select a server where you will play. Especially to create a character you need to create an account first to that game. Once you’re done creating a character, enter to that server and then kill a mobs(enemy monsters) to level up. Completing quests helps you to gain more gold and experience to level up in game. Sometimes quests have reward items when you cleared the dungeon or killed a certain monster indicated by an NPC. NPC means Non-player Character it is an AI or Bot character created by the developer of the game. They are the ones that will send you quests and you can also buy/sell items to them.
Ran Online and Dragon Nest’s gameplay are almost the same because you can invite the others to a party to kill a mobs together without getting each others experience and they can’t hurt each other. In Ran Online you can kill other players especially when it is PK time and the player you can only kill is the other schools. There are 3 Schools in Ran Online : Phoenix, Sacred Gate, and Mystic Peak. Also you can create a guild in Ran Online. To create a guild you need to party 7 players. There are Clan Wars/Guild Wars scheduled by the developer of the game. In order to win the Guild War, you need to conquest a certain e-room in the game. Guild Wars is a 1-hour event .you can also win by killing the enemies, Outsmarting the other guilds, and reading their tactics and strategies. You can also send a Duel/PvP Request to other players in Ran Online and Dragon Nest.

Dragon Nest Mobs 
Dragon Nest PvP
By leveling up until the cap level and making/buying items that can be your weapon or sets that has an ups can make you stronger than the other players. Completing quests by killing mobs can help you gain more items that can be used, or sell to earn gold.
That’s all for the MMORPG. You can discover their gameplay by playing them in PC. Dragon Nest has a mobile version too so you can download it in Appstore or Playstore. Goodluck and Have Fun playing these games.

