Research Technical Details

Research Time

For a basic version of this table, see Research Hours.

Min. Days	Known At	Ave. Days	Max. Days	Research Project	Ave.	Good	Exc.
25	34	50	75	Laser Weapons	4	7	13
50	67	100	150	Laser Pistol	8	14	26
75	100	150	225	Alien Entertainment	12	21	39
75	100	150	225	Alien Food	12	21	39
75	100	150	225	Alien Surgery	12	21	39
75	100	150	225	Examination Room	12	21	39
85	114	170	255	Live Terrorists (4 types)	14	24	45
90	120	180	270	Alien Corpses (11 types)	15	26	47
90	120	180	270	Motion Scanner	15	26	47
90	120	180	270	Personal Armor	15	26	47
90	120	180	270	Stun Bomb	15	26	47
95	127	190	285	Live Sectoid Commander	16	27	50
96	128	192	288	Live Aliens (22 types)	16	27	50
100	134	200	300	Alien Grenade	16	28	52
103	137	205	308	Power Suit	17	29	54
105	140	210	315	Medi-Kit	17	30	55
150	200	300	450	Alien Origins	24	42	78
150	200	300	450	Blaster Bomb	24	42	78
150	200	300	450	Laser Rifle	24	42	78
165	220	330	495	Flying Suit	27	47	86
180	240	360	540	Mind Shield	29	51	94
200	267	400	600	Alien Alloys	32	56	104
200	267	400	600	Heavy Plasma Clip	32	56	104
200	267	400	600	Plasma Pistol Clip	32	56	104
200	267	400	600	Plasma Rifle Clip	32	56	104
210	280	420	630	Laser Cannon	34	59	110
210	280	420	630	Psi-Lab	34	59	110
225	300	450	675	Elerium-115	36	63	117
225	300	450	675	UFO Construction	36	63	117
225	300	450	675	UFO Navigation	36	63	117
225	300	450	675	UFO Power Source	36	63	117
230	307	460	690	Heavy Laser	37	65	120
250	334	500	750	Psi-Amp	40	70	130
250	334	500	750	The Martian Solution	40	70	130
255	340	510	765	Laser Defenses	41	72	133
275	367	550	825	Small Launcher	44	77	143
300	400	600	900	Cydonia or Bust	48	84	156
300	400	600	900	Mind Probe	48	84	156
300	400	600	900	New Fighter Craft (Firestorm)	48	84	156
300	400	600	900	Plasma Pistol	48	84	156
310	414	620	930	Plasma Defenses	50	87	162
330	440	660	990	Plasma Beam	53	93	172
335	447	670	1005	Hyper-Wave Decoder	54	94	175
350	467	700	1050	New Fighter-Transporter (Lightning)	56	98	182
350	467	700	1050	Plasma Rifle	56	98	182
400	534	800	1200	Fusion Defenses	64	112	208
400	534	800	1200	Heavy Plasma	64	112	208
440	587	880	1320	Fusion Missile (Fusion Ball & Launcher)	71	124	229
450	600	900	1350	Blaster Launcher	72	126	234
450	600	900	1350	Ultimate Craft (Avenger)	72	126	234
465	620	930	1395	Grav Shield	75	131	242

Minimum Days is the minimum number of scientist-days needed to research this project (50% of Average Days). Known At is the point at which progress goes from Unknown to a progress rating (67% of Average Days). Average Days is the average number of scientist-days needed for this project (from RESEARCH.DAT). Maximum Days is the maximum number of scientist-days needed to research this project (150% of Average Days). Average, Good, and Excellent shows the minimum number of scientists needed for this progress rating (see below).

Research Time Basics

• The game starts with the average hours needed (from RESEARCH.DAT) and rolls to see how long a specific project will take (±50%). Laser Weapons take an average of 50 research days, but in practice can take from 25 to 75 days. The time it will take is determined when the project is started, and is stored in PROJECT.DAT.
• Projects only progress and check completion at midnight, so what scientists are doing the rest of the day – traveling between bases, on different projects, or sitting in the coffee room unassigned – is irrelevant. All that matters is what (if any) projects they are on at midnight. This single check also means projects take a minimum of one day.
• Each midnight, the game subtracts the number of research days according to how many scientists you have assigned to that project; the project is done when the counter reaches zero. If a project will require 31 man days and you have 10 scientists assigned, it will take four days to complete (and you have wasted nine). You could assign a lot of scientists until you reach the point where it might be completed, and gradually taper them. But without cheating, there's no way of telling just how long it will take.
• The efficiency increases as the number of scientists on a project decreases. If you run several projects in parallel, you'll waste fewer man days overall. In the extreme case, you'd assign only one scientist on every project and would be sure that not a single man day will be lost, but it would take months or years to get anything done. You decide.
• Even if you do "waste" scientist-days on the last day of a project, you may well get the opportunity to regain much more time than was wasted, due to the Research Rollover bug.

Research Progress

Known versus Unknown Progress

The game stops showing progress as Unknown when you have completed two-thirds of the average time needed to complete a project. By itself, this doesn't tell you much.

However, the roll for your project's actual time can be anywhere from 50% to 150% of the average, so if you roll less than 67% of the average time, the progress of your newly-created project becomes immediately known - and you know you just got a good roll. It happens a sixth of the time (50% to 67% is 1/6th of the 50% - 150% range).

• If your project is immediately known, it will take a mean of 58.33% of the average time to complete (7/12ths, halfway between 1/2 and 2/3rds).
• If it's Unknown, your roll is from 67% to 150% of the average, with a mean of 108.33% of the average (13/12ths, halfway between 8/12ths and 18/12ths).

Thus, a sixth of the time, it takes ~58% of the average research time to complete. The rest of the time, it takes ~108% of the average time. That's less than twice as long as initially-known projects, on average (13/7 = 1.86x).

In a nutshell, Unknown projects take about as long as the Average. But a sixth of the time, you get a double-speed gift (a Known project).

You can't cancel a research project at a given base, so the only way to exploit Knowns "honestly" would be to try the project at additional bases. However, it would be a hassle to set up labs at lots of bases, especially given the fact that it only takes 3+ Labs a few months to do most of the research (see Total Time, below). But if you want to be cheesy, you can save and reload if you get an Unknown.

Progress Ratings

Once your progress becomes known, ratings appear that correspond to a specific percent of the effort needed versus the average time for the project, as shown below. The minimum number of scientists needed for each rating is shown in the table above. The reciprocal of the percent shows how many days would be needed to complete the project with the minimum scientists for that rating, on average. "Inefficiency" is the percent of scientists wasted, on average, at that rating. It equals half of the percent assigned (sometimes you might hit the nail on the head and not waste a single scientist day, other times you might barely miss the mark and waste almost all your people the last day... but on average, you waste half of what's assigned on the last day of the project).

Progress Rating	Percent Assigned	Max. Days	Percent Inefficiency
Excellent	26%	3.85	13%
Good	14%	7.14	7%
Average	8%	12.50	4%

Poor only needs a minimum of 1 scientist. If no scientists are assigned, progress will say None.

Insights into Research Progress

Scientists Assigned versus Time To Completion and Efficiency

Although the research system allows for some insights, ultimately they're not very practical; you can't readily use them to become much more efficient.

• If you closely track scientist days, you can compute the maximum number of research days left. If the project approaches this max, you can use the info to avoid a lot of waste right toward the end. (If you know there's only 10 days left at most, don't keep 50 assigned.) However, you'd have to track every project even though it'd only wind up being useful for the small number that last real long.

Perhaps, then, the only real insights are simple and fairly obvious:

• Know what you're doing if you assign a high number of scientists (more than minimum needed for Excellent). You might want to track projects if they are important, and are using a large percent of your scientists.
• Initially-known projects only need about half the average time; progress ratings under-estimate by 2. (Assigning the minimum for Average progress to an initially-known project gives it about 16% of effort, not 8%.)
• Just be aware, in general, of the relationship between Progress Rating and efficiency of scientist use (see inset). Average or Good progress is also a good balance between time needed and efficiency.
  • Poor progress can drastically increase the time needed, for only tiny efficiency gains.
  • With Excellent progress, you might not finish it any faster no matter how many scientists you pile on - but you will become more and more inefficient.

Total Research Time

The total time needed to research all technologies is 21,215 days, plus another 576 to research The Minimum Three, plus another 6,500 or so to add every alien species, ship type, and mission type entry to the UFOpaedia (about 28,300 days total).

This can be compared against the total time needed for 1 Scientist, 50 Scientists (1 lab), 100 (2 labs), and so on. Numbers were composed by taking the average of the integer-truncated min and max for each project, then summing these together for all projects:

Note: the following figures are based on an earlier (incomplete) list of research topics. The specific numbers are no longer correct, although the "efficiency" figures are likely to be similar.

          Scientists
              1      50    100    150    200    250    300    350    400    450    500
Days        20215   391    190    125     94     75     67     58     56     52     49
Months       663  12.82   6.23   4.10   3.08   2.46   2.20   1.89   1.84   1.69   1.61
Efficiency    --    +3%    +6%    +8%    +8%    +8%    +1%    +0%   -10%   -13%   -17%

"Months" are considered to be 30.5 days long.

Efficiency shows how much time is gained or lost versus a pure case with absolutely no integer truncation or 1-day minima (see Notes). As can be seen, it is maximal around 3-5 labs, then starts dropping and keeps dropping.

Note that going from 3 labs to 4 only saves you about a month -- which is about how long it takes to set up the lab! In practice, 2-3 labs are quite sufficient to acquire all alien technologies in a reasonable time frame.