Different from homunculi, any player can use mercenaries, but instead of a creature that grows alongside you, mercenaries have fixed stats based on the level of mercenary summoned. A contract is made with a mercenary and scrolls are used to call them into battle. Both homunculus and mercenary can be used by a player at once. Mercenaries are all of the Demi Human race.

AI

The mercenary system is very similar to that used by the homunculus, as both are run by an AI on the client side. Mercenaries by default use a non-aggressive AI and only attack targets hitting the player or targets the player is attacking. The AI itself is located in the /AI/ folder in the RO directory. Where as homunculus normally executes AI.Lua, mercenaries use a separate file AI_M.Lua. Users can and are encouraged to customize their mercenary AI by modifying the files in the /AI/USER_AI/ folder. Instead of configuring it with /hoai command in-game, players use /merai instead to configure custom AI.

Interface

The following are keys used to control mercenaries.

Enemy Targeting - Alt + Left Click (on monster)

Left clicking once will cause the mercenary to queue up the monster. Left click again and the mercenary will immediately switch targets.

Moving - Alt + Left Click (on ground)

Alt and Left Clicking on the ground will cause the mercenary to stop everything and move to the target cell.

Standby - Ctrl + T

In standby the mercenary will stop everything and wait for orders at the master's side.

Information - Ctrl + R

Opens the mercenary status window.

Player Skills Used by Mercenaries

The following is a list of existing skills which are available to mercenaries, broken down by what classes are able to obtain them. These skills perform identical to the skill obtained by players.

Common Mercenary Skills

Berserk

Decrease AGI

Lex Divina

Magnificat

Provoke

Sense

Sight

Fencer Mercenary Skills

Bash

Bowling Bash

Frenzy

Magnum Break

Parry

Shield Reflect

Bowman Mercenary Skills

Arrow Repel

Arrow Shower

Double Strafe

Focused Arrow Strike

Freezing Trap

Land Mine

Remove Trap

Sandman

Skid Trap

Spearman Mercenary Skills

Brandish Spear

Clashing Spiral

Defending Aura

Guard

Pierce

Sacrifice

New Mercenary Skills

In addition to player skills, mercenaries have access to the following new skills. These skills are non-specific to any particular mercenary class.

Benediction

Compress

Crash

Mental Cure

Recuperate

Regain

Scapegoat

Tender

Weapon Quicken