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Homunculus System

What is a Homunculus

Homunculi are pets that assist players in ways such as a support, an instant partymate, or a sacrifice for the player. The player must be an Alchemist or a Biochemist and must go through the Bioethics Quest to unlock the appropriate skills required to create a Homunculus. After the quest, Bioethics.png Bioethic will be available to the player, and the rest of the Homunculus Skill Branch shall be available through the distribution of skill points.

There are 4 types of Homunculi with various attributes unique to each.

Name Baby Form Evolved Form Type Food Skills
Amistr

HP/DEF
Brute
Neutral		 912.png Zargon Castling
Amistr Bulwark
Adamantium Skin
Blood Lust
Vanilmirth

MATK
Formless
Neutral		 911.png Scell Caprice
Chaotic Blessings
Instruction Change
Self-Destruction
Filir

Flee/ASPD
Brute
Neutral		 910.png Garlet Moonlight
Flitting
Accelerated Flight
S.B.R.44
Lif

Support
Plant
Neutral		 537.png Pet Food Healing Hands
Urgent Escape
Brain Surgery
Mental Charge

How do you get a Homunculus?

To call out a Homunculus, an 7142.png Embryo is required. These can be purchased from other Alchemists or self-made. In order to make an 7142.png Embryo, an Alchemist must use the Skill Prepare Potion.png Pharmacy with the following materials purchasable from the Aldebaran Alchemist guild:

Success rates of creating 7142.png Embryos are affected mainly by the Alchemist's DEX and LUK.

Once an 7142.png Embryo is obtained, use the skill Call Homunculus.png Call Homunculusto summon the Homunculus. Even though it is not completely proven, it is a popular "fact" that the creator of the 7142.png Embryo's stats plays in a role in the probability of summoning each Homunculus.

Homunculus Status and Skill Points

Homunculus have their own set of stats apart from their masters, these will have a set amount upon summoning and will vary as it level. With each level, a Homunculus will receive a certain amount points to each stat (STR, INT, DEX, AGI, VIT, LUK) depending on which type of Homunculus. These stats are invisible under the Homunculus stat window (Alt+R). The Homunculus's ATK, MATK, HIT, CRIT, DEF, MDEF, FLEE, and ASPD will be visible.

Homunculus stats can be seen though [oRO's Control Panel] by choosing your character, scrolling down to the Pets tab, then clicking on your Homunculus. This page will even show whether the stat growing is good or not.

Calculations

  • ATK
    • Min ATK = STR + [STR(Rounded down to the nearest multiple of 10) / 10]^2^ + Dex
    • Max ATK = STR + [STR(Rounded down to the nearest multiple of 10) / 10]^2^ + Max(STR + Level, DEX)
  • MATK = INT + [INT(Rounded down to nearest multiple of 5)/5]^2^
  • HIT = Level + DEX
  • CRIT = [LUK/3] + 1
  • DEF
    • Armor Def = [Level / 10] + [VIT / 5]
    • VIT Def = VIT - 1
  • MDEF = [Level / 10] + [INT / 5]
  • FLEE = Level + AGI
  • ASPD = 200 - (Delay/10) + ( [4*Delay*AGI/1000] + [Delay*DEX/1000] ) / 10

Evolution

New Homunculus are born with 20 intimacy (Awkward).

Homunculi can evolve. Use a 12040.png Stone of Sage (simply double click it) when the Homunculus' intimacy is Loyal to evolve it. With Evolution, the Homunculus will obtain random bonus of 1-10 for each of the stats, increased HP and SP, and a new sprite.

After evolving, the Homunculus' intimacy resets to 10 (Hate). Once its intimacy reaches 910 (1 point before Loyal intimacy) again, a fourth, new skill is unlocked.

Controlling the Homunculus

Manual Functions

Here is a listing of all manual functions with the default AI. In general, there will be no need for any other manual functions in most Custom AIs.

  • Alt + Single Right Click: Target monster.
  • Alt + Double Right Click: Attack monster.
  • Alt + T: Standby, idle/passive mode, cancels all commands and returns to master.
  • Alt + Right Click Ground: Move to location (15 tile range).
  • Alt + R: Information window.

If the player is dead, manual commands can't be issued. The AI will continue to function as normal however.

AI

All Homunculi behavior is controlled by an AI script. There is a choice between the use of the default script or a custom-made script. The Default Script is both poorly made and simple. The Primary problems with the default script are that the Homunculus will either kill steal everything (default AIed Vanilmirth and Filir) or will not attack anything at all (default AIed Amistr and Lif). Hence it is recommended to make a custom AI or use a premade one made by users. To switch between the Default AI and the User AI, use the /hoai command. oRO provides a modified version of MirAI pre-packaged in the client.

AzzyAI does not work properly on non-Aegis based servers (like Hercules), so a manual fix must be done1. An additional fix must be done to Filir's Moonlight, changing the range of the skill from melee to ranged.

Configuring the AI

Pre-packaged custom AI is located at ...\gamedata\AI\arcadia. If you make any configuration changes, relog and resummon; this should be done every time there is a change in script. While there are infinite possibilities with AI scripts, it is necessary to understand that there are things it can and cannot do. These limitations are what separates it from bots.

To configure the Arcadia AI, find the button in the launcher or open ...\gamedata\AI\arcadia\config.exe.

To install a custom AI, place it in ...\gamedata\AI\USER_AI\ (any edits to ...\gamedata\AI\arcadia will be lost).

What is possible

  • Automatically attacking monsters within player's sight range.
  • Auto Casting Homunculus Skills.
  • Different tactics for individual monsters (ex: what priority to attack, using a skill on that monster etc.)
  • Reading the HP, SP, MAXHP and MAXSP values of the Homunculus or its owner.
  • Reading the target of an attacking monster (to avoid kill stealing).

What is impossible

  • Auto Feeding.
  • Using skills while their owner is Vending.png Vending
  • Homunculus maintain its AI when out of range of the Alchemist.
  • Having the Alchemist move around. Except when auto casting Castling.png Castling
  • Reading the HP, SP, MAXHP and MAXSP values of someone other than the Homunculus or its owner.
  • Auto player skills.

What is not allowed

  • Using a 3rd party program.
  • Feeding the Homunculus or moving the owner around using a 3rd party program.
  • Players are responsible for the actions of their Homunculus. For example, If the Homunculus kill-steals people, then the player is held accountable and may be punished accordingly.

Arcadia Online Modifications

  • Due to oRO's AFK restrictions, the following will apply to homunculi:
    • If the player is AFK for more than 30 seconds, Autolooting methods will be deactivated.
    • If the player is AFK for more than 5 minutes, EXP won't be granted to both the Alchemist and the Homunculus.
  • A limit of 3 homunculi outside of towns can be called (per Master Account). After the 3rd one, every new homunculis will be put to rest status.

Feeding and Intimacy

Much like pets, Homunculi require feeding.

  • Every 60 seconds the Homunculus loses 1 Hunger Point.
  • Feed the Homunculus when its hunger is between 11\~25 to get 1 full point of intimacy.
  • Feeding at the other times will give less than a full point and may even reduce the intimacy.
  • If one forgets to feed the Homunculus, its intimacy will decrease, and it will leave the master if it goes below zero intimacy.
Hunger Intimacy
Starving at 1%\~10% -1 every 60 secs
1%\~10% 0.5
11%\~25% 1
26%\~75% 0.75
76%\~90% -0.05
91%\~100% -0.5

The homunculus also display emotes as a way of warning the player. The emotes used are:

Status Emote
Hunger drops to 75% /ok
Hunger drops to 25% /hmm
Hunger below 11% every 20 seconds /sob
Player feeds without proper item /swt
Player feeds at 1%\~75% /ho
Player feeds at 76%\~90% /swt2
Player feeds at 91%\~100% /wah
Failed to use skill /...

Intimacy is crucial for evolution, obtaining the final skill, and AFKing. Intimacy has not been proven to affect Homunculus stat growth. Intimacy points will not show in the Homunculus window. However for each interval of intimacy points the Homunculus has, the window will show:

Intimacy Status
1-3 Hate with Passion
4-10 Hate
11-100 Awkward
101-250 Shy
251-750 Neutral
750-910 Cordial
911-1000 Loyal

Manipulating Intimacy

The player dying, the Homunculus dying, or the Homunculus vaporizing does not affect intimacy. Stressing it (other than using ultimate skills) is the only way that to lower its intimacy. One can stress the Homunculus by not feeding it (hunger \< 11) or overfeeding it (hunger > 75).

Each minute of starving causes the Homunculus to lose 1 Intimacy. It will take roughly 16.5 hours (16.5 * 60 = 990) to go from max Intimacy to 0 Intimacy.

If the player can no longer Call Homunculus or Homunculus Resurrection, then the Homunculus has left its master for good. However, Alchemists are able to create a new Homunculus.

Experience & Leveling

General Information

  • When a monster is killed by a homunculus alone:
  • If a player kills a monster and his/her homunculus doesn't contribute to the kill at all:
    • Player gets all Job Experience from the monster.
    • Homunculus gets no Experience at all.
  • If a monster is killed by having both the player and his/her homunculus dealing damage to the monster.
    • Player gets 125% of the monster's Base Experience - For example, a Sidewinder gives 1,996 base experience. If both the player and the homunculus participate in the fight, the player gets 2,495 experience (1,996 * 1.25) instead!
    • Player gets a portion of the monster's Job Experience based on how much damage is dealt by the player (the Job Experience pool is 125% of normal).
    • Homunculus gets a portion of the monster's EXP based on how much damage is dealt by it.
  • Whenever the player dies, if the homunculus is above 80% HP, it will automatically Rest.
    • If it is below 80%, it will not rest and is able to continue to fight, and the player continues to receive EXP from Homunculus, but manual commands cannot be used.
  • It's a common mis-conception that when a homunculus defeats a monster, they get the job experience of the monster. In actuality, they get a copy of the base exp of the monster, modified by the damage they did to it and how many people attacked it.
Level EXP Total EXP Level EXP Total EXP Level EXP Total EXP Level EXP Total EXP
1 - - 26 51,750 317,250 51 719,750 7,899,500 76 3,479,000 55,428,000
2 50 50 27 61,150 378,400 52 781,500 8,681,000 77 3,673,600 59,101,600
3 110 160 28 70,910 449,310 53 844,460 9,525,460 78 3,870,760 62,972,360
4 180 340 29 81,030 530,340 54 908,630 10,434,090 79 4,070,480 67,042,840
5 260 600 30 91,510 621,850 55 974,010 11,408,100 80 4,272,760 71,315,600
6 350 950 31 102,350 724,200 56 1,040,600 12,448,700 81 4,477,600 75,793,200
7 630 1,580 32 117,580 841,780 57 1,121,280 13,569,980 82 4,711,730 80,504,930
8 950 2,530 33 133,300 975,080 58 1,203,400 14,773,380 83 4,948,750 85,453,680
9 1,310 3,840 34 149,510 1,124,590 59 1,286,960 16,060,340 84 5,188,660 90,642,340
10 1,710 5,550 35 166,210 1,290,800 60 1,371,960 17,432,300 85 5,431,460 96,073,800
11 2,150 7,700 36 183,400 1,474,200 61 1,458,400 18,890,700 86 5,677,150 101,750,950
12 3,180 10,880 37 206,480 1,680,680 62 1,561,530 20,452,230 87 5,955,830 107,706,780
13 4,300 15,180 38 230,200 1,910,880 63 1,666,350 22,118,580 88 6,237,750 113,944,530
14 5,510 20,690 39 254,560 2,165,440 64 1,772,860 23,891,440 89 6,522,910 120,467,440
15 6,810 27,500 40 279,560 2,445,000 65 1,881,060 25,772,500 90 6,811,310 127,278,750
16 8,200 35,700 41 305,200 2,750,200 66 1,990,950 27,763,450 91 7,102,950 134,381,700
17 10,800 46,500 42 338,450 3,088,650 67 2,120,350 29,883,800 92 7,431,500 141,813,200
18 13,560 60,060 43 372,510 3,461,160 68 2,251,710 32,135,510 93 7,763,660 149,576,860
19 16,480 76,540 44 407,380 3,868,540 69 2,385,030 34,520,540 94 8,099,430 157,676,290
20 19,560 96,100 45 443,060 4,311,600 70 2,520,310 37,040,850 95 8,438,810 166,115,100
21 22,800 118,900 46 479,550 4,791,150 71 2,657,550 39,698,400 96 8,781,800 174,896,900
22 28,090 146,990 47 525,590 5,316,740 72 2,817,340 42,515,740 97 9,165,840 184,062,740
23 33,630 180,620 48 572,630 5,889,370 73 2,979,380 45,495,120 98 9,553,880 193,616,620
24 39,420 220,040 49 620,670 6,510,040 74 3,143,670 48,638,790 99 9,945,920 203,562,540
25 45,460 265,500 50 669,710 7,179,750 75 3,310,210 51,949,000 - - -

Leveling Spots

Homunculus Befriending

Homunculus can befriend other Homunculi or players by holding down the 'Alt' key and right clicking one-cell below the Homunculus or player. Upon doing so, your Homunculus will circle around them which will enable them to 'KS' or assist that player or Homunculus. When befriending other Homunculi, all of them need to befriend each other. You can make your Homunculus 'unfriend' someone by repeating the same action and your Homunculus should move to the left and right of the person.

FAQ for Homunculus

  • They gain a skill point for every three levels. There is no Job Level equivalent.
  • Their Flee and Defense are not reduced by the number of monsters.
  • Their HIT is capped at 99%. Even if it has way more hit than required for a monster, it will always miss at a 1% chance.
  • All Homunculus have a base attack speed of 1.4 seconds / attack (130). Different stat growths lead to different attack speeds of each Homunculi.
  • Homunculi Stat Growth is RANDOM.
  • Homunculi can hit Ghost Property Monsters.
  • It is possible to fail to create the 7142.png Embryos.
  • Homunculi are not affected by Bard & Dancer songs. https://gitlab.com/arcadia-online/arcadia-online/-/issues/1325

References

  1. Hercules' forum thread about AzzyAI: https://herc.ws/board/topic/3187-homunculus-ai-improvement. ↩