Paizo Top Nav Branding
  • Hello, Guest! |
  • Sign In |
  • My Account |
  • Shopping Cart |
  • Help/FAQ
About Paizo Messageboards News Paizo Blog Help/FAQ
Pathfinder Roleplaying Game
Pathfinder Society

Pathfinder Beginner Box

Pathfinder Adventure Card Game

Pathfinder Comics

Pathfinder Legends

Experience Point progression Formulas?


Alpha Release 3 General Discussion


I was checking out the Xp progression (Slow,Medium and Fast) and I can't see on which formula these progressions are based upon!

I am trying to figure out a mathematical formula for each progression that I could use in Excel... Any ideas?

Thanks!

RiTz21

Liberty's Edge

Pathfinder Adventure Path Charter Subscriber; Pathfinder Campaign Setting, Companion, Modules, Pawns, Roleplaying Game, Tales Subscriber

I asked this awhile back, there isn't one exactly.

I don't remember what the number was, but the XP chart is actually based on having a fix number of encounters each level.

Paizo Employee Lead Designer

The reason why you are having some troubles nailing it down is because there is a small amount of rounding involved.

The system starts out by assuming 13.3, 20, and 30 encounters per level in a group of four characters. The XP per encounter formula follows a base 400, increased by 50% for the next level (600), and increased by 100% (from the first level base) for the level after that (800). From that point forward, the XP system follows this progression, with each level worth double the amount of the level two levels lower. This XP system allows the encounter building system and the XP system to sync up.

Complicated, but it works.

Jason Bulmahn
Lead Designer
Paizo Publishing

Liberty's Edge

Pathfinder Adventure Path Charter Subscriber; Pathfinder Campaign Setting, Companion, Modules, Pawns, Roleplaying Game, Tales Subscriber

I think I'll copy and paste that into notepad for future reference. :)


*puts formula into spreadsheet*

Yay!


RiTz21 -- I had a couple of possible formulas that I worked out in another thread, but I can't find the $#%! post any more...

Jason is correct, though; there is rounding, and then rounding of the rounded values, etc. so that an exact formula is probably impossible to get.


I found my notes. The formula for the Medium XP column would be:

F(i) = 2000 * (2^floor(i/2) - 1) + 3000 * (2^floor((i-1)/2) - 1)

...rounded to "2.5" significant figures.

Paizo / Messageboards / Paizo Publishing / Older Products / Playtests & Prerelease Discussions / Pathfinder RPG Prerelease Discussion / Alpha Playtest Feedback / Alpha Release 3 / General Discussion / Experience Point progression Formulas? All Messageboards
Recent threads in General Discussion

©2002–2014 Paizo Inc.®. Need help? Email customer.service@paizo.com or call 425-250-0800 during our business hours: Monday–Friday, 10 AM–5 PM Pacific Time. View our privacy policy. Paizo Inc., Paizo, the Paizo golem logo, Pathfinder, the Pathfinder logo, Pathfinder Society, GameMastery, and Planet Stories are registered trademarks of Paizo Inc., and Pathfinder Roleplaying Game, Pathfinder Campaign Setting, Pathfinder Adventure Path, Pathfinder Adventure Card Game, Pathfinder Player Companion, Pathfinder Modules, Pathfinder Tales, Pathfinder Battles, Pathfinder Online, PaizoCon, RPG Superstar, The Golem's Got It, Titanic Games, the Titanic logo, and the Planet Stories planet logo are trademarks of Paizo Inc. Dungeons & Dragons, Dragon, Dungeon, and Polyhedron are registered trademarks of Wizards of the Coast, Inc., a subsidiary of Hasbro, Inc., and have been used by Paizo Inc. under license. Most product names are trademarks owned or used under license by the companies that publish those products; use of such names without mention of trademark status should not be construed as a challenge to such status.