d20 Attack Calculator is a powerful combat calculator, optimization tool, and dice roller for d20 RPG systems such as Pathfinder RPG or D&D 3.0 / 3.5 / 5th Edition. Use this program to roll dice for your complex attack routines and evaluate your character build from visual graphs and dice roll statistics.
Features:
* Attack calculator and dice roller / calculator
* Plot key statistics for your dice rolls:
- Expected (average) damages
- Hit chances
- Dice roll distribution and averages
* Analyze your DPR (damage-per-round) and appropriate challenge rating
* History data for your d20 attack rolls
The DPR analysis can be used to tell you how long it takes you to solo a monster of a given CR (or AC), on average, providing players a rough measuring tool to estimate their power level.
See more information on how the DPR calculations are done and a tutorial on "how to determine when to use Power Attack" at: http://www.hapero.fi/d20/
If you would like to test the program, check out the free Lite version. This full version includes all the features of the Lite version an in addition:
* Unlimited saving and loading of attack routines and plotted graphs
* Hit chance graphs for attacks
* Multiple buffs/debuffs to attacks
* Export plotted data to other programs
* More statistics and graph data from your past d20 rolls