Power Level

Power (previously called as Power Level) is a measure of the strength of Weapons, Traps, Defenders, Heroes, Survivors and the player's Homebase. It is also measures the difficulty of Missions and Expeditions.

Item Power

• All inventory items have a Power that depends on their type, Rarity and level.
• The Power of an item can be increased by leveling and evolving it.
• Higher rarity items have higher Power than others of the same type and level (with the exception of Mythic Heroes).
• On Heroes, Weapons, Traps and Defenders, the Power merely serves as an indicator of the item's strength, and has no influence on game mechanics.
• Survivors and Lead Survivors however increase the player's F.O.R.T. Stats proportionally to their Power when placed in Survivor Squads.

Calculation

An approximate formula to calculate power for an individual item is as follows:

Power = Round( Base Power + ( (LVL - 1) * LVL Constant ) + ( (Star LVL - 1) * EVO Constant ) )

LVL is the current level of the item, and Star LVL is the current Evolution Tier of the item. Base Power, LVL Constant, and EVO Constant in the above formula depend on the type and rarity of the item, and are as follows:

Rarity	Base Power	Heroes, Weapons, Traps, Defenders, and Subordinate Survivors		Lead Survivors
		LVL Constant	EVO Constant	LVL Constant	EVO Constant
Common	1	1	5
Uncommon	4	1.08	6.35	1	5
Rare	7	1.245	7	1.08	6.35
Epic	9	1.374	8	1.245	7
Legendary	12	1.5	9	1.374	8
Mythic *	25	1.645	9.85	1.5	9

• * This row currently applies only to Mythic Subordinates. Mythic Heroes use the same values as Legendary Heroes.
• The above formula fails only for Level 40 Rare Lead Survivors, yielding a power of 71, whereas 72 would be correct.

Table

The table below shows the Power Level for all inventory items given their Rarity and level. The values have been obtained by leveling the respective items in game and noting down the power. Currently, the calculations leading to these values are unknown, although attempts have been made to find approximate formulas

• Heroes, Weapons, Traps, Defenders and Subordinate Survivors share the same power values.
• Lead survivors are different from the rest. At level 1, they start out exactly as other items, but when leveled up, they scale like other items of one rarity below.
• Mythic Heroes' power is the same as for Legendaries.
• Levels 52, 54, 56, 58, and 60 can only be achieved by using Superchargers on schemetics.

Power for Heroes, Weapons, Traps, Defenders and Survivors (abbr. H/W/T/D/S) and Lead Survivors, by item level

Star Level	Level	Common	Uncommon		Rare		Epic		Legendary		Mythic
		W/T/D/S	H/W/T/D/S	Leader	H/W/T/D/S	Leader	H/W/T/D/S	Leader	H/W/T/D/S	Leader	Survivor	Leader
★	1	1	4	5	7	10	9	15	12	20	25	25
	2	2	5	6	8	11	11	16	14	21	27	27
	3	3	6	7	9	12	12	17	15	23	28	28
	4	4	8	8	11	13	14	19	17	24	30	30
	5	5	9	9	12	14	15	20	18	25	32	31
	6	7	10	10	13	15	17	21	20	27	33	33
	7	8	11	11	15	16	18	22	21	28	35	34
	8	9	13	12	16	18	20	24	23	30	37	36
	9	10	14	13	17	19	21	25	24	31	38	37
	10	11	15	14	19	20	22	26	26	32	40	39
★★	10	17	21	19	26	26	30	33	35	40	50	48
	11	18	23	20	27	27	32	34	36	42	51	49
	12	20	24	21	29	28	34	36	38	43	53	51
	13	21	26	22	30	29	35	37	40	44	55	52
	14	22	27	23	32	30	37	38	42	46	56	54
	15	23	28	24	33	31	39	39	43	47	58	55
	16	24	30	25	35	33	40	41	45	49	60	57
	17	26	31	26	36	34	42	42	46	50	61	58
	18	27	32	27	38	35	43	43	48	51	63	60
	19	28	34	28	39	36	45	44	49	53	64	61
	20	29	35	29	41	37	46	46	51	54	66	63
★★★	20		43	34	49	43	54	53	61	62	76	72
	21		45	35	51	44	56	54	62	63	78	73
	22		46	36	52	45	58	55	64	65	79	75
	23		47	37	54	46	60	56	66	66	81	76
	24		49	38	55	48	61	58	68	68	83	78
	25		50	39	56	49	63	59	69	69	84	79
	26		51	40	58	50	65	60	71	70	86	81
	27		53	41	59	51	66	61	73	72	87	82
	28		54	42	61	52	68	63	74	73	89	84
	29		55	43	62	53	69	64	76	74	91	85
	30		57	44	64	54	71	65	77	76	92	87
★★★★	30				74	60	81	72	88	84	102	96
	31				75	61	83	73	90	85	104	97
	32				77	63	84	75	92	87	106	99
	33				78	64	86	76	94	88	107	100
	34				80	65	87	77	95	89	109	102
	35				81	66	89	78	97	91	110	103
	36				83	67	91	80	99	92	112	105
	37				84	68	92	81	101	93	114	106
	38				86	69	94	82	102	95	115	108
	39				87	70	96	83	104	96	117	109
	40				89	72	97	85	106	98	119	111
★★★★★	40						108	92	116	106	129	120
	41						110	93	117	107	130	121
	42						111	94	118	108	132	123
	43						112	95	120	110	133	124
	44						114	97	121	111	135	126
	45						115	98	123	112	137	127
	46						116	99	124	114	138	129
	47						118	100	126	115	140	130
	48						119	102	127	117	142	132
	49						120	103	129	118	143	133
	50						122	104	130	119	145	135
	52						124		132
	54								136
	56								139
	58								142
	60								144

Charts

Power level charted against item level (Heroes, Survivors, Defenders, Weapons and Traps)

Power level charted against item level (Lead Survivors)

Power level charted against cumulative XP spent on the item. Defenders would use half the XP.

Homebase Power

Homebase Power is a value that measures how strong you are, based on your F.O.R.T. Stats. The maximum power level is 145.

In addition, your Homebase Power increases whenever a player joins your team, contributing a percentage of their FORT Stats to your FORT stats.

Calculation

Power Level = 4(Fortitude) + 4(Offense) + 4(Resistance) + 4(Tech)