D&D 5E Pathfinder to 5e Monster Converter

[Kryx]

I've been working diligently on creating a monster converter for Pathfinder to 5e: 5e Monster Converter

I have based my converter off these conversion rules.

The goal of this converter is to give a pretty solid guestimate of all the basic features of creatures and as many advanced features as possible.

How it works: Copy a whole stat block from either PFSRD or an adventure path book into the textarea. It will automatically convert. If it does not please open your console (F12) and let me know what error you got.

The converter currently does all these basic things:

• Size, Type, alignment
• AC
• HP, HD
• Speed
• Abilities (Str, Dex, Con)
• Skills
• Senses
• Languages
• Challenge
• Traits (some)
• Multiattack
• Attacks
• Special Attacks (some)

Some items that I'd love some help on:
AC, Challenge, Traits, Special Attacks, Immunities.

AC: I currently use either the armor listed under "gear" or "other gear" or the formula in this google doc. I have tested 161 creatures comparing their pathfinder version to their 5e version and seeing how close my formula got. The formula isn't perfect so please let me know if you have any better ideas.

Challenge: I calculate the average HP and compare it to the table on DMG 274 (I find the middle of the range and compare to that). I determine a defensive CR based on that. I then calculate the damage per round from all attacks (including multiattack) and compare that to the same table (I find the middle of the range and compare to that) to get the offensive CR. I then average those two numbers to get an overall CR - just as prescribed. If anyone has any suggestions for how to improve this please let me know.

Traits: I currently process some items based on the SQ field from pathfinder. I'll be adding more over time. I'm currently working through Skull & Shackles monsters to see how they compare to the ones I did manually (up to book 3). Please let me know if you know of a common one that should be added and preferably the 5e wording for it.

Special Attacks: Same as traits really, just from the special attack(s) field.

Resistances & Immunitites: For the most part 5e got rid of 50% of the ones from PF. It will be quite difficult to make this work in a general way.

I appreciate any feedback that you give


Example Stat block:

Otyugh CR 4
XP 1,200
N Large aberration
Init +0; Senses darkvision 60 ft., scent; Perception +9
DEFENSE
AC 17, touch 9, flat-footed 17 (+8 natural, -1 size)
hp 39 (6d8+12)
Fort +3, Ref +2, Will +6
OFFENSE
Speed 20 ft.
Melee bite +7 (1d8+4 plus disease), 2 tentacles +3 (1d6+2 plus grab)
Space 10 ft.; Reach 10 ft. (15 ft. with tentacle)
Special Attacks constrict (tentacle, 1d6+2)
STATISTICS
Str 18, Dex 10, Con 13, Int 5, Wis 13, Cha 6
Base Atk +4; CMB +9 (+13 grapple); CMD 19 (21 vs. trip)
Feats Alertness, Toughness, Weapon Focus (tentacle)
Skills Perception +9, Stealth +2 (+10 in lair); Racial Modifiers +8 Stealth in lair
Languages Common

 

[Dragonsbane]

AWESOME!!

 

[Magistus71]

Nice to see you posted this here, I meant to respond on Reddit, and suggest you do so. Also does this convert 3.5 to 5e or just Pathfinder stats blocks?

 

[Hussar]

Yoink!!! Thanks.

 

[Kryx]

Just Pathfinder - the stat structure for 3.5 is totally different.

 

[Minsc]

Nice job!

Now who has some old PFS adventures?

 

[Kryx]

Added Spellcasting and calculated CR based on it.

Example:

The Brinebrood Queen CR 3
XP 800
Female grindylow druid (aquatic) 4 (Pathfinder RPG Bestiary 2 148, Pathfinder RPG Advanced Player’s Guide 98)
NE Small aberration (aquatic)
Init +2 (+4 in aquatic terrain);
Senses darkvision 60 ft.;
Perception +8 (+10 in aquatic terrain)
DEFENSE
AC 17, touch 13, flat-footed 15 (+2 Dex, +4 natural, +1 size)
hp 26 (5d8+4)
Fort +4, Ref +3, Will +9; +4 vs. water spells and aquatic or water subtype abilities
Defensive Abilities resist ocean’s fury
OFFENSE
Speed 15 ft., swim 30 ft., jet 200 ft.
Melee vindictive harpoon +7 (1d6+4/×3)
Ranged vindictive harpoon +7 (1d6+3/×3)
Special Attacks icicle (1d6+2 cold damage, 6/day), tangling tentacles
Druid Spells Prepared (CL 4th; concentration +7)
2nd—barkskin, chill metal, fog cloudD
1st—entangle (DC 14), hydraulic push*, longstrider, obscuring mistD, speak with animals
0 (at will)—detect magic, flare (DC 13), guidance, resistance
D Domain spell; Domain Water
* See the Advanced Player’s Guide.
STATISTICS
Str 15, Dex 14, Con 10, Int 10, Wis 16, Cha 12
Base Atk +3; CMB +4 (+8 trip with tangling tentacles); CMD 16 (24 vs. trip)
Feats Combat Casting, Exotic Weapon Proficiency (harpoon), Power Attack
Skills Escape Artist +8, Intimidate +8, Knowledge (geography) +4 (+6 in aquatic terrain), Knowledge (nature) +8, Perception +8 (+10 in aquatic terrain), Spellcraft +4, Stealth +16 (+18 in aquatic terrain), Survival +5 (+7 in aquatic terrain), Swim +16 (+18 in aquatic terrain)
Languages Aquan
SQ amphibious, aquatic adaptation, natural swimmer, nature bond (Water domain), nature sense, wild empathy (aquatic) +5
Combat Gear potion of cure moderate wounds, wand of summon nature’s ally II (12 charges); Other Gear vindictive harpoon (+1 returning harpoon; see page 59), lobster pot containing grindylow flensing knives including two masterwork daggers, a masterwork silver dagger, a rusting masterwork cold iron sickle, a scrimshaw blade of great workmanship depicting an octopus worth 125 gp, and 12 other blades of varying shape and quality

 

[Magistus71]

Just Pathfinder - the stat structure for 3.5 is totally different.

Any plans for a 3.5 converter then?

 

[Nilbog]

This is amazing! I'm currently running RoTRL in 5e and this is a god send, will save me so much time.

Thank you so much [MENTION=6670944]Kryx[/MENTION]

 

[Kryx]

I don't use 3.5 content so I wouldn't make it work for 3.5 unless there was a large desire to sup
[MENTION=98183]Nilbog[/MENTION] I converted RotRL for book 1-2 when I first started 5e. Some of it could likely be updated, but here it is if you want it: https://docs.google.com/document/d/1kloyX_I_8wP9WGzwzKj-tJMh-TfyGcotrIu7xuHUjF8/edit