Alright, this here is the ultimate llist of MMOs known to LYN. Unless stated, they are your standard garden variety MMORPG. Also next to each one is a description describing the most important detail about any MMO out there... Wether there are charges involved.

Here's a quick guide for what means what in the list.
Activation - The price to start the game. This includes anything from the price of a starter pack, retail pack, activation keys, etc.
Monthly fees - Monthly charges that are required for the user to play. Can be done via credit card or point card system.

The purpose of this list is so that anyone who wants to know what's free and what's not can easily check so here. So, any future threads requesting just that will be shut down promptly. This thread can also be used to ask general questions about online games (If you want specifics, go to the game threads... that's what they're there for)

This is the first draft of the list, it will be updated regularly and I'll get around to sorting it properly.

So, here's the list in no particular order (Okay, its basically the list of threads in the forum and I"m just ripping em off). You can post any corrections or other games here as well:

Activation and monthly fees required
A3 Online LYN thread
Ragnarok Online LYN thread
Final Fantasy XI LYN thread
City of Villains LYN thread
Planetside LYN thread
Dark & Light LYN thread
Star Wars Galaxies LYN thread
Everquest 2 LYN thread
World of Warcraft LYN forum
Dungeons & Dragon Online LYN thread
Lineage 2 LYN thread
Final Fantasy XI LYN thread
Free to play with Cash Shops
Maple Story SEA LYN thread
KAL Online LYN thread
thread
Ran Online LYN thread
GoPets LYN thread
Shui Hui Fantasy Online LYN thread
Knight Online LYN thread
Pangya SEA LYN thread
EVE-online LYN thread
Kong Kong Online LYN thread
Trickster Online LYN thread
JX2 LYN thread
Special Force Singapore LYN Thread

Free newbie play. Fees required for further levelling
Rakion Online LYN thread
Survival Project LYN thread

Activation fee required, no monthly fees
Guild Wars LYN thread

Monthly fee required, no activation fee
EVE Online LYN thread

Open Beta (Free)
GunZ The Duel (Online FPS/TPS) LYN thread
Warrock (Online FPS) LYN thread
Turf Battles LYN thread
Dispatch of Army (Online FPS) LYN thread

Web-based (Free)
Utopia LYN thread
Neopets LYN thread
Archmage LYN thread
OGame LYN thread
GamesTotal (Galactic Conquest) (Certain races require fees to be unlocked) LYN thread
Legend of the Green Dragon
Pardus
Archspace

Totally free
Silkroad Online LYN thread
Gate to Heaven - LYN thread
Fly for Fun LYN thread
D.O. Online LYN thread
Race War Kingdom LYN thread
MU Online LYN thread

Unknown
Uncharted Waters Online LYN thread

This list will be updated on a regular basis. Now, if you'll excuse me let me go bang my head on the wall for a bit as I wear off the effect of reading all the badly written websites I just went through... 

It's time to update the list started by H@H@.
The presenting format will largely remain the same as original. Since I'm not the original thread owner, I'll try to re-upload this post once a new page is created for the thread, until forum moderator(s) allows new thread to be created to replace this thread.

For now, I'll only include some of those MMOs with active LYN community posting since 1st May 2014. Additional list of MMOs will be added at forumers request with valid link to the respective LYN thread. (Best to have at least some community support, not a one-man-army thread)

Quick definition:
F2P - Free to Play (Pays nothing to access, usually adopt microtransactions buisness model)
P2P - Pay to Play (Pays activation/monthly fees to access)
T2P - Time to Play (Pays using in-game currency to access, which you earn through spending your time in the game, usually involves monthly fees)

F2P
Microtransactions available
Aura Kingdom LYN thread
Avatar Star Online LYN thread
Blade and Soul (CN) LYN thread
DC Universe online LYN thread
Dragon Nest (SEA) LYN thread
DUST514 LYN thread
Elsword LYN thread
Granado Espada Online LYN thread
Knight Online LYN thread
Lord of The Rings Online LYN thread
Maple Story (SEA) LYN thread
Marvel Heroes LYN thread
Mission Against Terror LYN thread
Neverwinter Online LYN thread
Phantasy Star Online 2 (SEA) LYN thread
Planetside 2 LYN thread
Ragnarok Online LYN thread
RIFT LYN thread
Runescape LYN thread
Tera (EU) LYN thread
TS Online (Philippines) LYN thread
Vindictus LYN thread
Wakfu LYN thread
War Thunder LYN thread
World of Tanks LYN thread

Open Beta
Kingdom Under Fire II LYN thread
P2P
Initial purchase and monthly fees required
The Elder Scrolls Online LYN thread
Final Fantasy XI LYN thread
P2P + T2P
Initial purchase and monthly fees required
Wildstar Online LYN thread (T2P option: C.R.E.D.D.)

Monthly fees required
EVE Online LYN thread (T2P option: PLEX)
In Development
Cabal Online 2 LYN thread
Maple Story 2 LYN thread
Tree of Savior LYN thread

*For an almost full list of MMOs (but without link to LYN community forum), you can refer to:
MMORPG.com

Please check the validity of the provided links and information for those who are much more familiar with the listed MMOs.

Hello there,

One question. For "Activation and monthly fees required" list,  does it means a P2P without cash shop/item malls implemented?
Thanks.

Please put guild wars 2 into the list

Please update:

Archeage is now f2p+p2p - US & Euro server available

GW2 was not included in the list at first since there's a dedicated subforum for easier access. Since there's a request now, I'll gladly oblige.
Noted with thanks. I'll send the updated info to the moderators once I'm free to do so. Need to recheck all working links with the current revamped "Gamers Hideout".

I see the list no longer updated...
what is the current latest and most anticipated MMORPG game?
I looking for 1 to fill my free time