Battlesystem to 3rd edition D&D conversion
By W. Steven Hansen (hansenclan@qwest.net)

Global Changes:

Command Radius is now abbreviated CoR to avoid confusion with Challenge Rating.

AR has been changed to comply with the new attack and AC ratings for 3rd edition.

Converting THACO to Attack Bonus:
Attack Bonus = 20 - THACO

Converting Old AR to Attack Bonus:
Attack Bonus =  20 - Old AR + Unit Modifiers*

Converting Old AC to New AC:
New AC =  20 - Old AC

Figuring new AR from Attack Bonus:
New AR = Attack Bonus – Unit Modifiers*
		or
New AR = 20 - Old AR** 

Attack Roll =  2d6 + New AC – New AR

Movement is converted BACK into 1st edition format (inches) from 3rd edition (feet), this is done by dividing the 3rd edition feet by 2.5.  (i.e. 30’ turns into 12”)

Saving Throws should all be figured using 3rd edition rules.

*Unit Modifiers are from Table 9 on page 15 of Battlesystem rules.
** It is better to figure AR from attack bonus since Strength Bonuses have changed, but this gives you the general idea.  AR, just like AC is now reversed.

Page 8

[4.8] COMMAND RADIUS

(Paragraph 1)
Every commander has a Command Radius (abbreviated CoR).  The command radius of a creature is calculated by adding its charisma to its character level and Challenge Rating (for monsters only), then by dividing by two.  Fighters, Rangers, Paladins and Barbarians receive a 3” bonus to CoR.  Characters with the Leadership feat receive an additional 3” bonus to CoR.

Table 8. Charisma Morale Bonus
Use Table 1-1 on page 8 of 3rd edition Player’s handbook
Then divide bonus by two, rounding toward +0.

5.0 Initiative Phase

Initiative is rolled for each unit on the battlefield using a d20, and re-used for the rest of the battle.  Use the Initiative modifiers for the creatures that compose the unit.  If more that one type of creature makes up a unit.  (i.e. goblins riding worgs,) then take the lower of the initiative bonuses.

Page 15

[8.3] Determining Attack Ratings.

(Paragraph 2) 
To determine the base Attack Rating for a figure or unit, first determine the total attack bonus for a unit with the appropriate weapon.  Then subtract the Ratio adjustment from the table below to determine the Base AR.

Table 9. Ratio Adjustments for Determining AR.
Figure Ratio	Adjustment
10:1			  0
 5:1			- 5
 2:1			- 10
 1:1			- 15

Table 10. Attack Rating Modifiers for Melee Combat.

Attacker is in open or skirmish formation			-1
Any Attacking figures are out of command 
     (does not apply to skirmish units)			-1
Defender occupies higher ground				-1
Attacker is charging in closed formation			+1
Attacking commander is fighting as part of the unit.	+1

[8.4] MELEE PROCEDURE
A.  Determine adjusted AR of attacker and Armor Class (AC) of defender.  Subtract AR from AC. (Conversion note, These are REVERSED from previous edition)

Page 23

Table 17. Spell Areas of Effect.

D&D 3e/ AD&D	1e	BATTLESYSTEM	FIGURE BASE
GAME SCALE		SCALE			SIZE

10’ / 1”			1/3”			½”
20’ / 2”			2/3”			¾”
30’ / 3”			1”			1”
40’ / 4”			1 1/3”			1 ½”
50’ / 5”			1 2/3”			1 ¾”
60’ / 6”			2”			2”

Page 31

Table 18. Point Costs.
Creature/Item Cost

Spells			Pay 50 points per level of the spell (e.g., a 4th level spell costs 200 points)

Magical Items		Gold Piece value of item divided by 10.

Character Types   	Pay for their magic items, and spells they can cast plus according to the  following table:
& Monsters

CR / Level  	Point Cost

¼ 		 6        
½ 		 12  
1		 18	
2		 25   
3		 36
4		 50  
5		 75
6		 100
7		 150
8		 200
9		 300
10		 400
11	600
12	800
13		 1200
14		 1600
15		 2400
16		 3200
17		 4800
18		 6400
19		 9600
20	 12800

ARMY NAME	
PLAYER NAME	

NAME	
COMMAND RANK	S	D	C	 I	W	ch	Sr	
AC	CB	RACE	Fo	Re	Wl	Ib	Al	
HD	CoR	WEAPON/DAMAGE	
Hp	MV		
Attack Bonus	AR	Attack Modifiers	

SPECIAL ABILITIES and LIMITATIONS	
NAME	
COMMAND RANK	S	D	C	 I	W	ch	Sr	
AC	CB	RACE	Fo	Re	Wl	Ib	Al	
HD	CoR	WEAPON/DAMAGE	
Hp	MV		
Attack Bonus	AR	Attack Modifiers	

SPECIAL ABILITIES and LIMITATIONS	
NAME	
COMMAND RANK	S	D	C	 I	W	ch	Sr	
AC	CB	RACE	Fo	Re	Wl	Ib	Al	
HD	CoR	WEAPON/DAMAGE	
Hp	MV		
Attack Bonus	AR	Attack Modifiers	

SPECIAL ABILITIES and LIMITATIONS	
NAME	
COMMAND RANK	S	D	C	 I	W	ch	Sr	
AC	CB	RACE	Fo	Re	Wl	Ib	Al	
HD	CoR	WEAPON/DAMAGE	
Hp	MV		
Attack Bonus	AR	Attack Modifiers	

SPECIAL ABILITIES and LIMITATIONS	

UNIT NAME	UNIT TYPE	
AC
	# FIG	UNIT COMMANDER/DEPUTY	
HD/fig	RATIO	LEVEL/RACE/CLASS	
MV	SIZE	S	R	For	Ref	Wil	Al	Ini		
AR	AR Modifiers	
ML	ML Modifiers	
DL
	Wpn/Dmg	
SPECIAL ABILITIES AND LIMITATIONS	
UNIT NAME	UNIT TYPE	
AC
	# FIG	UNIT COMMANDER/DEPUTY	
HD/fig	RATIO	LEVEL/RACE/CLASS	
MV	SIZE	S	R	For	Ref	Wil	Al	Ini		
AR	AR Modifiers	
ML	ML Modifiers	
DL
	Wpn/Dmg	
SPECIAL ABILITIES AND LIMITATIONS	

UNIT NAME	UNIT TYPE	
AC
	# FIG	UNIT COMMANDER/DEPUTY	
HD/fig	RATIO	LEVEL/RACE/CLASS	
MV	SIZE	S	R	For	Ref	Wil	Al	Ini		
AR	AR Modifiers	
ML	ML Modifiers	
DL
	Wpn/Dmg	
SPECIAL ABILITIES AND LIMITATIONS	
UNIT NAME	UNIT TYPE	
AC
	# FIG	UNIT COMMANDER/DEPUTY	
HD/fig	RATIO	LEVEL/RACE/CLASS	
MV	SIZE	S	R	For	Ref	Wil	Al	Ini		
AR	AR Modifiers	
ML	ML Modifiers	
DL
	Wpn/Dmg	
SPECIAL ABILITIES AND LIMITATIONS