Massively considers a game to be in open testing if it has open, public signups and plans for a server wipe before its official launch. Self-described "open beta" MMOs that have soft-launched with functioning real-money cash shops will not be listed.
Blood and Jade (R2Games): Announcement, Signup
Inferno Legend (Changyou): Announcement, Signup
Margonem (Garmory): Signup
Project Gorgon (Project Gorgon): Signup
Sevencore (Ignited Games): Announcement, Signup
SmashMuck Champions (Kis Studios): Announcement, Signup, /r/ (early access on Steam now)
Taikodom (Gamersfirst): Announcement, Signup
UFO Online (gamigo): Announcement, Signup
We consider an MMO to be in closed testing if it features either future test signups or an ongoing semi-private beta/alpha that cannot immediately and freely be accessed by the general public. Some are restricted by NDAs. This still qualifies even if the test does feature an active cash shop so long as the signups are restricted; it also qualifies if the testing is limited to purchasers.
DayZ (Bohemia Interactive): Announcement, Signup (access is for early purchasers on Steam)
Earthrise: First Impact (SilentFuture): Announcement, Signup
Elite: Dangerous (Frontier): Announcement, Early Access Purchase
End of Nations (Trion): Announcement, Signup, /r/
EverQuest Next Landmark (Sony Online Entertainment): Announcement, Signup (in paid alpha)
Face of Mankind (Nexeon): Signup
Infinite Crisis (Turbine): Announcement, Signup
League of Angels (GTArcade): Announcement, Signup
LEGO Minifigures Online (Funcom): Announcement, Signup (launching summer 2014)
Lime Odyssey (Aeria Games): Announcement, Signup
Line of Defense (3000AD): Announcement, Signup
MU Rebirth (Webzen): Announcement, Signup
Origins of Malu (Burning Dog): Announcement
Starlite (Project Whitecard): Announcement, Signup (fka Astronaut: Moon, Mars, and Beyond)
Strife (S2 Games): Announcement, Signup
The Elder Scrolls Online (Zenimax): Announcement, Signup (launches 4/4/14)
The Repopulation (Above and Beyond): Announcement, Signup, /r/
TUG (Nerd Kingdom): Announcement, Signup
Venus Rising (FoxySoft): Announcement (fka Orgia Romanus; adult MMO, possibly NSFW)
WildStar (Carbine/NCsoft): Announcement, Signup
This week, we've got a question by longtime reader Vexia: So, is anything really happening on the Lime Odyssey front?
The answer is yes, but none of it is good, unfortunately. Lime Odyssey was on track for localization and release in America, but the last update on the official site was in June of last year. The official word on the forums was that the game was being taken back in-house for more adjustments and that it would be put on the back burner whilst Arcane Saga was being localized and brought out.
Unfortunately, that update was back in September, and since then the forums have been almost completely silent. The usual policy is to leave games like that on the list if the official word is still "this is happening" for a while, but since the game itself is shutting down in Korea on the 20th, it's going to be cut by then if there's no more official word.
Short version: It's probably not happening.
Betawatch is Massively's weekly report on the latest MMO alphas, betas, and other games still meandering toward an official launch. From ArcheAge to World of Warplanes, it's covered here, complete with sign-up links so that you too can perform the unpaid quality-control work otherwise known as game testing. Drop us a comment if we've missed one, and many thanks to Steven Eyerman for the Subreddit links!