Massively multi-player online first-person shooter video games

Massively multi-player online first-person shooter video games (MMOFPS) are a sub-category of the massively multiplayer online video games (MMO) video game genre, which combines first-person shooter-style gameplay with the game design elements that typify the MMO genre; namely, a persistent world populated by a large number of concurrent players, and in-depth player character progression mechanics. Whereas most MMOGs typically feature relatively slow-paced, "turn-based" combat, an MMOFPS requires a high degree of hand-eye coordination and twitch-based skills.

Development
MMOFPS development is dilatory due to the many variables involved with the genre. Compromising balance between financial support, bandwidth and the demanding framerates needed by the genre cap off developmental progress, particularly with independent developers.

CrossFire
CrossFire is the most popular MMOFPS in the world. Developed in South Korea, it generates annual revenues almost approaching $1 billion. In China alone, it generated revenues of $860 million in 2011. and $874 million in 2012.

PlanetSide
PlanetSide is a purely PvP MMOFPS published by Sony Online Entertainment and released on May 20, 2003. It offers a constantly-moving player-driven world which offers up to 300 v 300 v 300 on any given area. In addition to being an infantry FPS, there is vehicular and aerial combat tied into the gameplay.

World War II Online
World War II Online is a massively multi-player simulation or virtual battlefield with land, air, and sea units in a true combined arms environment. It was released on June 6, 2001. The game's developers manage to release one or two new units every year.

Darkfall
Darkfall is a fantasy-themed MMORPG/MMOFPS hybrid that was released on February 26, 2009. Whilst Darkfall does use a tightly-constrained third-person view for melee combat, the vast majority of the gameplay is performed in first-person and features fast, twitch-based combat in which all melee, archery and magic attacks are aimed.

Hellgate: London
Hellgate: London is a dark fantasy and modern-themed RPG. There are traditional single-player modes, along with a massively multi-player mode. It held similar gameplay to the Diablo franchise, due to the fact many of its developers worked on Diablo. Servers for this game have been shutdown, and support ceased.

The Agency
The Agency is a MMOFPS being developed and published by Sony Online Entertainment. Sony has stated that it will feature twitch-style FPS gameplay, while retaining aspects of several MMORPGs like instanced content, character classes, and loot. The Agency features a system of collectable "Operatives", NPCs who will assist the character and can perform missions. Operatives can be leveled up, traded and captured on missions.

Massive Action Game
Massive Action Game is an army simulation game developed by Zipper Interactive, announced at the 2008 E3 trade show. Little is known except that 256 players can fight on one map. The game is exclusive for the Playstation 3.

Endless Ages
Endless Ages is a MMOFPS being developed and published by Digital Motion Entertainment (DBA DME-Games). Endless Ages features aspects of first-person shooters with those of MMORPGs, such as character classes, questing, raids, player-owned housing, an auction system-based economy and a player-versus-player system. The game also features an arena combat system and a clan war system that allows clans or guilds to take over arenas and forts.

Huxley
Huxley is an MMOFPS being developed by Webzen Games Inc and is being released in 2009 for Microsoft Windows and with the Xbox 360 version following approx. six months later. It uses the Unreal Engine 3 game engine and battles will be able to support up to 150 players on each side during an instanced "Battlezone".

Fallen Earth
Fallen Earth is a science fiction MMORPG/MMOFPS in development by Fallen Earth, LLC, It is set in the 22nd century in a post-apocalyptic world. It is combining elements of a First Person Shooter with Role Playing game in a massively multiplayer environment with a 7000 square kilometer area to explore. Closed Beta Testing began February 4 2009 with expected release sometime in Q2 2009

Earthrise
Earthrise is a forthcoming science fiction MMORPG. The game is based on a clash between two opposing factions in a post-apocalyptic setting. It will feature a skill-based advancement system, a player-driven economy and emphasis on PvP. Combat will be a mix between FPS and traditional MMORPG combat systems.

Global Agenda
Global Agenda is a MMOFPS/MMORPG with a community controlled world. It uses the unreal engine and twitch style game play. It allows teams (or guilds) to build and take over cities, as well as research technology. Players may upgrade their character as their combat experience increases.