This was a long one, but hopefully, this is a great in-depth guide for anyone looking to make their first custom monsters in this game! I tried to be as thorough as I could so this is useful to even the most advanced of PF2e GMs... I figured that having an example would be the best way to illustrate practical applications of these ideas.
Here is a link to my custom creature: https://monster.pf2.tools/v/FvxwWow9-vanarma
Link to the website that templates statblocks: https://monster.pf2.tools/
Link to creature-building rules on AoN: https://2e.aonprd.com/Rules.aspx?ID=995
Music was from the Dorfromantik OST by Laryssa Okada; Pygoscelis
Chapters:
Intro -
00:00
Purpose -
01:32
Core Concept -
03:04
Research -
05:02
Understanding a Base Roadmap -
07:47
Description of Each Base Roadmap -
11:14
First Pass Actually Building a Creature -
15:41
Power and Complexity Budgets -
20:40
Designing Custom Abilities -
28:12
Balancing of Weaknesses -
31:44
Design of ACCURACY boost ability (increase to DPR) -
35:51
Giving it a Ranged Attack -
38:21
Balancing Skills -
39:09
General Final Balance Pass Notes -
41:30
Final MISC Notes -
47:22