D2 Base Drop

Recursive Probability Table

Drops work as follows:

For a given Equip TC, there are (usually) 4 pairs of weapon and armor TC and a 'drop' possibility. The probabilities (Px) are summed (S) for the whole class and a random number is generated from 1 to S to determine the drop. If the number generates another Equip Class, then the process is repeated.

for Act 3 Equip A there is a total of 136. therefore:

2/136 chance of weap15

1/136 chance of armo15

6/136 chance of weap18

3/136 chance of armo18

14/136 chance of weap21

7/136 chance of armo21

2/136 chance of weap24

1/136 chance of armo24

and 100/136 chance of dropping to Act 2 Equip C

When you do the calculations recursively, you get the probabilities shown these tables: D2_Base_Drop_2

TreasureClass	level	I1	P1	I2	P2	I3	P3	I4	P4	I5	5	6	6	7	7	I8	P8	I9	P9	TotalProb	DropChance
Act 1 Equip A	0	weap3	7	armo3	7															14	0
Act 1 Equip B	5	weap3	3	armo3	3	weap6	7	armo6	7											20	0
Act 1 Equip C	9	weap3	2	armo3	1	weap6	6	armo6	3	weap9	14	armo9	7	weap12	2	armo12	1			36	0
Act 2 Equip A	12	weap6	2	armo6	1	weap9	6	armo9	3	weap12	14	armo12	7	weap15	2	armo15	1	Act 1 Equip C	30	66	0.4545
Act 2 Equip B	15	weap9	2	armo9	1	weap12	6	armo12	3	weap15	14	armo15	7	weap18	2	armo18	1	Act 2 Equip A	60	96	0.6250
Act 2 Equip C	18	weap12	2	armo12	1	weap15	6	armo15	3	weap18	14	armo18	7	weap21	2	armo21	1	Act 2 Equip B	80	116	0.6897
Act 3 Equip A	20	weap15	2	armo15	1	weap18	6	armo18	3	weap21	14	armo21	7	weap24	2	armo24	1	Act 2 Equip C	100	136	0.7353
Act 3 Equip B	22	weap18	2	armo18	1	weap21	6	armo21	3	weap24	14	armo24	7	weap27	2	armo27	1	Act 3 Equip A	200	236	0.8475
Act 3 Equip C	24	weap21	2	armo21	1	weap24	6	armo24	3	weap27	14	armo27	7	weap30	2	armo30	1	Act 3 Equip B	340	376	0.9043
Act 4 Equip A	26	weap24	2	armo24	1	weap27	6	armo27	3	weap30	14	armo30	4	weap33	2	armo33	1	Act 3 Equip C	430	463	0.9287
Act 4 Equip B	29	weap27	2	armo27	1	weap30	6	armo30	3	weap33	14	armo33	3	weap36	2	armo36	1	Act 4 Equip A	500	532	0.9398
Act 5 Equip A	32	weap27	2	armo27	1	weap30	6	armo30	3	weap33	14	armo33	3	weap36	7	armo36	5	Act 4 Equip B	629	670	0.9388
Act 5 Equip B	34	weap30	2	armo30	1	weap33	6	armo33	2	weap36	14	armo36	7	weap39	2	armo39	1	Act 5 Equip A	731	766	0.9543
Act 5 Equip C	36	weap30	2	armo30	1	weap33	6	armo33	2	weap36	14	armo36	7	weap39	2	armo39	1	Act 5 Equip B	833	868	0.9597
Act 1 (N) Equip A	38	weap33	2	armo33	1	weap36	6	armo36	3	weap39	14	armo39	7	weap42	2	armo42	1	Act 5 Equip C	935	971	0.9629
Act 1 (N) Equip B	40	weap33	2	armo33	1	weap36	6	armo36	3	weap39	14	armo39	7	weap42	6	armo42	3	Act 1 (N) Equip A	1105	1147	0.9634
Act 1 (N) Equip C	42	weap36	2	armo36	1	weap39	6	armo39	3	weap42	14	armo42	7	weap45	2	armo45	1	Act 1 (N) Equip A	1020	1056	0.9659
Act 2 (N) Equip A	44	weap36	2	armo36	1	weap39	6	armo39	3	weap42	14	armo42	7	weap45	6	armo45	3	Act 1 (N) Equip B	1233	1275	0.9671
Act 2 (N) Equip B	46	weap39	2	armo39	1	weap42	6	armo42	3	weap45	14	armo45	7	weap48	2	armo48	1	Act 2 (N) Equip A	1105	1141	0.9684
Act 2 (N) Equip C	48	weap39	2	armo39	1	weap42	6	armo42	3	weap45	14	armo45	7	weap48	6	armo48	3	Act 2 (N) Equip A	1318	1360	0.9691
Act 3 (N) Equip A	50	weap42	2	armo42	1	weap45	6	armo45	3	weap48	14	armo48	7	weap51	2	armo51	1	Act 2 (N) Equip B	1190	1226	0.9706
Act 3 (N) Equip B	52	weap42	2	armo42	1	weap45	6	armo45	3	weap48	14	armo48	7	weap51	6	armo51	3	Act 3 (N) Equip A	1445	1487	0.9718
Act 3 (N) Equip C	54	weap45	2	armo45	1	weap48	6	armo48	3	weap51	14	armo51	7	weap54	2	armo54	1	Act 3 (N) Equip A	1275	1311	0.9725
Act 4 (N) Equip A	56	weap45	2	armo45	1	weap48	6	armo48	3	weap51	14	armo51	7	weap54	6	armo54	3	Act 3 (N) Equip B	1530	1572	0.9733
Act 4 (N) Equip B	58	weap48	2	armo48	1	weap51	6	armo51	3	weap54	14	armo54	7	weap57	2	armo57	1	Act 4 (N) Equip A	1360	1396	0.9742
Act 4 (N) Equip C	60	weap48	2	armo48	1	weap51	6	armo51	3	weap54	14	armo54	7	weap57	6	armo57	3	Act 4 (N) Equip A	1658	1700	0.9753
Act 5 (N) Equip A	62	weap51	2	armo51	1	weap54	6	armo54	3	weap57	14	armo57	7	weap60	2	armo60	1	Act 4 (N) Equip B	1445	1481	0.9757
Act 5 (N) Equip B	64	weap51	2	armo51	1	weap54	6	armo54	3	weap57	14	armo57	7	weap60	6	armo60	3	Act 5 (N) Equip A	1743	1785	0.9765
Act 5 (N) Equip C	66	weap54	2	armo54	1	weap57	6	armo57	3	weap60	14	armo60	7	weap63	2	armo63	1	Act 5 (N) Equip B	1530	1566	0.9770
Act 1 (H) Equip A	68	weap54	2	armo54	1	weap57	6	armo57	3	weap60	14	armo60	7	weap63	6	armo63	3	Act 5 (N) Equip C	1785	1827	0.9770
Act 1 (H) Equip B	70	weap57	2	armo57	1	weap60	6	armo60	3	weap63	14	armo63	7	weap66	2	armo66	1	Act 1 (H) Equip A	1530	1566	0.9770
Act 1 (H) Equip C	71	weap57	2	armo57	1	weap60	6	armo60	3	weap63	14	armo63	7	weap66	6	armo66	3	Act 1 (H) Equip A	1785	1827	0.9770
Act 2 (H) Equip A	73	weap60	2	armo60	1	weap63	6	armo63	3	weap66	14	armo66	7	weap69	2	armo69	1	Act 1 (H) Equip B	1530	1566	0.9770
Act 2 (H) Equip B	75	weap60	2	armo60	1	weap63	6	armo63	3	weap66	14	armo66	7	weap69	6	armo69	3	Act 2 (H) Equip A	1785	1827	0.9770
Act 2 (H) Equip C	76	weap63	2	armo63	1	weap66	6	armo66	3	weap69	14	armo69	7	weap72	2	armo72	1	Act 2 (H) Equip A	1530	1566	0.9770
Act 3 (H) Equip A	77	weap63	2	armo63	1	weap66	6	armo66	3	weap69	14	armo69	7	weap72	6	armo72	3	Act 2 (H) Equip B	1785	1827	0.9770
Act 3 (H) Equip B	78	weap66	2	armo66	1	weap69	6	armo69	3	weap72	14	armo72	7	weap75	2	armo75	1	Act 3 (H) Equip A	1530	1566	0.9770
Act 3 (H) Equip C	79	weap66	2	armo66	1	weap69	6	armo69	3	weap72	14	armo72	7	weap75	6	armo75	3	Act 3 (H) Equip A	1785	1827	0.9770
Act 4 (H) Equip A	80	weap69	2	armo69	1	weap72	6	armo72	3	weap75	14	armo75	7	weap78	2	armo78	1	Act 3 (H) Equip B	1530	1566	0.9770
Act 4 (H) Equip B	81	weap69	2	armo69	1	weap72	6	armo72	3	weap75	14	armo75	7	weap78	6	armo78	3	Act 4 (H) Equip A	1785	1827	0.9770
Act 4 (H) Equip C	82	weap72	2	armo72	1	weap75	6	armo75	3	weap78	14	armo78	7	weap81	2	armo81	1	Act 4 (H) Equip A	1530	1566	0.9770
Act 5 (H) Equip A	83	weap75	2	armo75	1	weap78	6	armo78	3	weap81	14	armo81	7	weap84	2	armo84	1	Act 4 (H) Equip B	1530	1566	0.9770
Act 5 (H) Equip B	84	weap78	2	armo78	1	weap81	6	armo81	3	weap84	14	armo84	7	weap87	2	armo87	1	Act 5 (H) Equip A	1530	1566	0.9770
Act 5 (H) Equip C	85	weap81	2	armo81	1	weap84	6	armo84	3	weap87	14	armo87	7	weap87	1	armo87	1	Act 5 (H) Equip B	1530	1565	0.9776	]