Until further notice Andrew will be using a new AC and THAC0 system based on the 3rd Edition rules. The purpose of this change is to speed up combat.
New Armour Class = 10 (base) + armour bonus + shield + other modifiers
To convert from an old AC: New Armour Class = 10 + (10 – old AC)
Armour |
Armour Bonus |
Leather |
2 |
Studded Leather |
3 |
Ring Mail |
3 |
Scale Mail |
4 |
Chain Mail |
5 |
Splint Mail |
6 |
Banded Mail |
6 |
Plate Mail |
7 |
Field Plate |
8 |
Full Plate |
9 |
Shield |
1 |
Attack Roll = 1d20 + class attack bonus + other modifiers
If Attack roll >= new AC then you hit.
A 1d20 roll of “1” is always a miss.
To convert from an old THAC0: Attack Bonus = 20 – old THAC0 (see tables below )
Notes:
1. Not using size modifiers from 3rd edition at this stage.
2. Still using the old THAC0 table converted, not using the new Class Attack Bonus tables from 3rd Edition
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
|
Priest |
0 |
0 |
0 |
2 |
2 |
2 |
4 |
4 |
4 |
6 |
6 |
6 |
8 |
8 |
8 |
10 |
10 |
10 |
12 |
12 |
Rogue |
0 |
0 |
1 |
1 |
2 |
2 |
3 |
3 |
4 |
4 |
5 |
5 |
6 |
6 |
7 |
7 |
8 |
8 |
9 |
9 |
Warrior |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
Wizard |
0 |
0 |
0 |
1 |
1 |
1 |
2 |
2 |
2 |
3 |
3 |
3 |
4 |
4 |
4 |
5 |
5 |
5 |
6 |
6 |
Monster |
1 |
1 |
3 |
3 |
5 |
5 |
7 |
7 |
9 |
9 |
11 |
11 |
13 |
13 |
15 |
15 |
17 |
17 |
19 |
19 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
|
Priest |
20 |
20 |
20 |
18 |
18 |
18 |
16 |
16 |
16 |
14 |
14 |
14 |
12 |
12 |
12 |
10 |
10 |
10 |
8 |
8 |
Rogue |
20 |
20 |
19 |
19 |
18 |
18 |
17 |
17 |
16 |
16 |
15 |
15 |
14 |
14 |
13 |
13 |
12 |
12 |
11 |
11 |
Warrior |
20 |
19 |
18 |
17 |
16 |
15 |
14 |
13 |
12 |
11 |
10 |
9 |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
Wizard |
20 |
20 |
20 |
19 |
19 |
19 |
18 |
18 |
18 |
17 |
17 |
17 |
16 |
16 |
16 |
15 |
15 |
15 |
14 |
14 |
Monster |
19 |
19 |
17 |
17 |
15 |
15 |
13 |
13 |
11 |
11 |
9 |
9 |
7 |
7 |
5 |
5 |
3 |
3 |
1 |
1 |
The following example clearly shows that caclulating if a charcter hit something is easier using the new system.
Old System: |
Q Featherhammer (THAC0 = 16, +2 Str, +1 Axe) wants to hit Cadra (AC=1). He rolls a 14, so he hits AC: 16 – (14 + 2 + 1) = -1, which is <= 1, so he hits. |
New System: |
Q Featherhammer (AB = +4, +2 Str, +1 Axe) wants to hit Cadra AC=19). He rolls a 14, so he hits AC: 14 +4 + 2 + 1 = 21, which is >= 19, so he hits. |
Surprise: One roll and result for all involved. Roll 1d10, surprised on a 1 or 2, use worst dexterity modifier.
Initiative: Roll 1d10, winner goes first in each phase: Fast, Average, Slow (V Fast and V Slow used when needed).
Simultaneous Initiative in Combat and Tactics is used.