RF Online, originally named 'Romance & Fantasy' (later westernized to Rising Force Online) but then shortened to RF Online after Korean Closed Beta, is a 3D MMORPG

Basically a mixture of science fiction and classic fantasy, RF Online (or RFO, as many of its players call it) is set in a distant planet in the Novus system where magic exists alongside high technology. Like most MMORPGs, it follows the typical fantasy setting complete with swords and sorcery, but RF Online emphasizes the three-way Race vs. Race (RvR) concept similar to the Dune series.

Gameplay
As with most MMORPGs, the player will select one of the above race and one of the below classes, and fight monsters to gain experience points. RFO is populated with many different monsters across many areas

HP The most prevalent among games, HP represents life. On your character, it is the red bar in the middle.
FP FP is the equivalent of Mana or energy in this game. On your character, it is the blue bar below.
Stamina Stamina is used for running and some higher level skills. It can be seen on your character by clicking on the "S" button next to the yellow bar on the top left of the screen along with your level, HP and FP.
DP "Defense Points". DP dictates the damage you are able to withstand. You lose DP as you get hit. The lower the DP the higher the damage you receive. When DP is completely drained, your defense will also disappear. The lower the DP upon death, the higher the exp will be lost if killed by a monster. It is represented by the thin white line above your character, above the larger HP and FP bars. Also known as the Defense Gauge.
---On the official website, it states that the Defense Gauge affects only the talics in your equipment, not your base defense from it.

DDP "Dodge Points". In the future patches, a Dodge Point limit will be implemented. With the same effects as Defense Points, you will lose DDP as long as someone is attacking you. When it is drained, your dodge will also disappear. Also known as the Dodge Gauge.

Auto Potion / Skill / Chat
RF online's Episode 1 Giga 4 update has included an automation system for the use of potions (pots), execution of skills, and chatting. This can be accessed by pressing [Y] in game

Auto Pots Players do not have to worry about their HP, FP, SP They can set up the auto potion menu to manage the use of recovery potions.
Auto Action The auto action menu enables the players to set a sequence of actions/skills and execute them by pressing just one button. There are three available buttons where one could set up a skill/action sequence.
Auto Chat The auto chat menu enables the players to set 5 statements to be automatically 'typed'.