Using the Percentile Dice system

One of the differences I want to make between my system and Dungeons and Dragons is the main dice used for most actions. While the D&D system uses a 20 sided die (d20); my system uses a d10 and a percentile die. Rather than rolls resulting in a 1-20 each roll would land on 1-100.

Normally in D&D you roll a d20 and add the character's stats to that number to get your result. Instead, in my system there is a default range that determine a success. For example we will use combat rolls.

In D&D you roll a d20 and add your attack bonus to the roll. And you are trying to get a higher result than the opponent's Armor Class (AC). Usually at early levels enemies have around 14-17 AC. And players have about a 3-5 Base Attack Bonus (BAB). So the player would have to roll around 11-14 to land a hit. So that's a little over 55% to land a successful hit. I was not a very big fan of those odds.

In my system I made a default range of getting hit and criticals. The combatants stats and abilities increase and shrink the range of each section.

Now, this is just the default combat scenario against a defender who is not trying to actively dodge attacks. I want to give players the option to decide if they want add a 'Dodge' stat that would further increase the miss range, but this would use up an action on the character's upcoming turn. But that is for another time.