Alien Stats

The information on this page was gathered from Zombie's excellent page at Strategy Core and the Excel files that can be found there.

For historical discussion and background info on alien stats, see this page's Discussion tab

Core Stats

These statistics are found in the executable of the game (except for Zombies). (GEOSCAPE.EXE for DOS versions, and X-COM UFO Defense for the Windows version)

Alien Race/Rank	TU	Sta	He	Br	Rea	FA	TA	Str	PST	PSK	Armor				EnR	VPS	Agg	Mel	Int	Height
											Fr	L/R	Re	Un						St	Kn
Floater Soldier	50	90	35	80	50	50	58	40	35	0	8	6	4	12	30	12	2	70	4	21	16
Floater Navigator	50	90	35	80	50	50	58	40	35	0	8	6	4	12	30	14	2	70	5	21	16
Floater Medic	50	90	35	80	50	50	58	40	35	0	8	6	4	12	30	16	1	70	6	21	16
Floater Engineer	50	90	35	80	50	50	58	40	35	0	8	6	4	12	30	18	2	70	7	21	16
Floater Leader	55	95	40	80	60	60	58	47	40	0	16	12	8	12	30	25	0	70	8	21	16
Floater Commander	60	100	45	80	66	63	65	48	45	0	24	18	12	16	30	35	0	76	8	21	16
Sectoid Soldier	54	90	30	80	63	52	58	30	40	0	4	3	2	2	30	10	2	76	3	16	12
Sectoid Navigator	54	90	30	80	63	52	58	30	40	0	4	3	2	2	30	12	2	76	4	16	12
Sectoid Medic	54	90	30	80	63	52	58	30	40	0	4	3	2	2	30	14	1	76	5	16	12
Sectoid Engineer	54	90	30	80	63	52	58	30	40	0	4	3	2	2	30	16	2	76	6	16	12
Sectoid Leader	54	90	30	80	63	52	58	30	50	50	4	3	2	2	30	20	1	76	7	16	12
Sectoid Commander	54	90	30	80	63	52	58	30	50	60	4	3	2	2	30	25	0	76	8	16	12
Snakeman Soldier	40	80	45	80	45	58	65	47	40	0	20	18	16	12	30	15	2	54	2	18	18
Snakeman Navigator	40	80	45	80	45	58	65	47	40	0	20	18	16	12	30	17	2	54	3	18	18
Snakeman Engineer	40	80	45	80	45	58	65	47	40	0	20	18	16	12	30	20	2	54	4	18	18
Snakeman Leader	40	80	45	80	55	65	65	47	45	0	20	24	22	20	30	28	2	54	5	18	18
Snakeman Commander	45	84	55	80	65	58	65	47	50	0	26	26	22	20	30	36	2	54	6	18	18
Ethereal Soldier	68	96	55	80	75	74	80	48	50	40	35	35	35	35	40	20	1	85	6	20	15
Ethereal Leader	68	96	55	80	75	74	80	48	60	45	40	40	40	40	40	30	1	85	7	20	15
Ethereal Commander	68	96	55	80	75	74	80	48	65	50	45	45	45	45	40	40	1	85	8	20	15
Muton Soldier	56	90	125	80	60	54	62	70	25	0	20	20	20	10	40	15	2	78	2	21	16
Muton Navigator	56	90	125	80	60	54	62	70	25	0	24	24	24	15	40	17	2	78	3	21	16
Muton Engineer	56	90	125	80	60	54	62	70	25	0	28	28	28	20	40	19	2	78	4	21	16
Reaper	62	90	148	90	64	0	0	90	35	0	28	28	28	4	34	25	2	80	2	23	16
Chryssalid	110	140	96	100	70	0	0	110	50	0	34	34	34	34	40	25	2	80	4	21	16
Silacoid	40	80	114	100	40	0	0	70	80	0	50	50	50	10	40	20	2	80	3	10	10
Celatid	70	90	68	90	40	100	0	70	60	0	20	20	20	20	40	20	2	80	4	12	12
Sectopod	62	90	96	110	64	60	0	90	100	0	145	130	100	90	50	30	1	80	4	23	16
Cyberdisc	62	90	120	110	64	60	0	90	100	0	34	34	34	34	50	20	1	80	5	15	15
Zombie	40	110	84	110	40	0	0	84	80	0	4	4	4	4	20	18	2	80	3	18	18

Key

• TU: The number of Time Units the alien has per turn.
• Sta: Stamina (or Energy).
• He: Health.
• Br: Bravery.
• Rea: Reactions.
• FA: Firing Accuracy.
• TA: Throwing Accuracy.
• Str: Strength
• PST: Psionic Strength.
• PSK: Psionic Skill.
• Fr, L/R, Re, Un: Front, Left/Right, Rear and Under armor.
• EnR: Energy Recharge. This number represents how fast a unit will recover Energy lost due to movement.
• VPS: The number of Victory Points X-COM will get for killing that alien.
• Agg: Aggression is a number between 0 and 2. The larger the value, the more aggressive the alien will be. High ranking aliens usually prefer to stay concealed, rather than get involved in a raging fire-fight..
• Mel: (Also known as CCBA or Close Combat Base Accuracy). This number acts as the accuracy for hand-to-hand combat attacks.
• Int: Intelligence of the alien ranked from 2-8. This number correponds to the number of turns the alien will remember the location of your troops.
• St, Kn: Standing, Kneeling height.

Calculating Statistics

Statistic Percentage Health 0% Bravery 0% Throwing Accuracy 0% Energy Recharge 0% Victory Points 0% Aggression 0% Intelligence 0% Standing 0% Kneeling Height 0% Time Units 4% Stamina/Energy 4% Reactions 6% Firing Accuracy 6%* Strength 2% Psionic Strength 4% Psionic Skill 4% Melee (aka CCBA) 4% NOTE: Statistics with 0 percentage are constant and therefore do not change with difficulty level

To find a statistic which increases by a constant amount, the game adjusts the core value by a percentage which is dependent upon a skill level "multiplier". Generally, the Beginner skill level numbers match the core group exactly so no modification is necessary. This multiplier (referred to as SLM) is the same value for the difficulty stored in IGLOB.DAT (if patched) They are reproduced to the right. Difficulty SLM Beginner 0 Experienced 1 Veteran 2 Genius 3 Superhuman 4 Equation This equation gives the statistic for any of the statistics to the left. The core values are in the table above. Credit goes to Zombie (the user, not the unit) for discovery of this (and about everything on this page). Skill Value = INT(Core Value * (100 + (Percentage * SLM)) / 100) Firing Accuracy* Beginner level aliens have a firing accuracy one-half the core value. Experienced through Superhuman skill levels are modified by a 6% change per level increase. Armor Beginner level aliens have an armor rating of one-half the core value. Higher skill levels just receive the core value with no percentage adjustment.

Other Notes

• Zombie stats are not listed in the executable where the normal aliens are situated. Not only that, but their stats do not change as the skill level increases. For more information on this oddity, see the Editing Alien Stats heading on this page.
• Civilian stats are also constants and do not change.
• Chryssalids which are spawned in a mission by the game have stats modified in the normal way. However, Chryssalids which hatch from Zombies have all their stats set to their core, irregardless of current difficulty level.

See Also

• Alien Life Forms
• Overviews of Aliens
• Terror Units
• Category:Soldiers - Category containing more information on what each statistic does
• Saved Game Files / Category:Game Files