From UFOpaedia
Revision as of 06:29, 7 December 2019 by Magic9mushroom (talk | contribs) (→‎General Information: name wrong)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

General Information

RESEARCH.DAT contains information about all the different research projects available, including total time the research requires and the number of points awarded upon completion. It consists of 96 records, each 22 bytes long, in the following sequence:

# Title
1 Laser Weapons
2 Motion Scanner
3 Medi-Kit
4 Psi-Amp
5 Heavy Plasma
6 Heavy Plasma Clip
7 Plasma Rifle
8 Plasma Rifle Clip
9 Plasma Pistol
10 Plasma Pistol Clip
11 Blaster Launcher
12 Blaster Bomb
13 Small Launcher
14 Stun Bomb
15 Alien Grenade
16 Elerium-115
17 Mind Probe
18 UFO Power Source
19 UFO Navigation
20 UFO Construction
21 Alien Food
22 Alien Reproduction
23 Alien Entertainment
24 Alien Surgery
# Title
25 Examination Room
26 Alien Alloys
27 New Fighter Craft
28 New Fighter-Transporter
29 Ultimate Craft
30 Laser Pistol
31 Laser Rifle
32 Heavy Laser
33 Laser Cannon
34 Plasma Cannon
35 Fusion Missile
36 Laser Defense
37 Plasma Defense
38 Fusion Defense
39 Grav Shield
40 Mind Shield
41 Psionic Laboratory
42 Hyper-Wave Decoder
43 (N/A) Tank/Laser Cannon*
44 (N/A) Plasma Hovertank*
45 (N/A) Launcher Hovertank*
46 Sectoid Corpse
47 Snakeman Corpse
48 Ethereal Corpse
# Title
49 Muton Corpse
50 Floater Corpse
51 Celatid Corpse
52 Silacoid Corpse
53 Chryssalid Corpse
54 Reaper Corpse
55 Sectopod Corpse
56 Cyberdisc Corpse
57 Alien Origins
58 The Martian Solution
59 Cydonia or Bust
60 Personal Armor
61 Power Suit
62 Flying Suit
63 Live Sectoid Commander
64 Live Sectoid Leader
65 Live Sectoid Engineer
66 Live Sectoid Medic
67 Live Sectoid Navigator
68 Live Sectoid Soldier
69 Live Snakeman Commander
70 Live Snakeman Leader
71 Live Snakeman Engineer
72 Live Snakeman Medic
# Title
73 Live Snakeman Navigator
74 Live Snakeman Soldier
75 Live Ethereal Commander
76 Live Ethereal Leader
77 Live Ethereal Engineer
78 Live Ethereal Medic
79 Live Ethereal Navigator
80 Live Ethereal Soldier
81 Live Muton Commander
82 Live Muton Leader
83 Live Muton Engineer
84 Live Muton Medic
85 Live Muton Navigator
86 Live Muton Soldier
87 Live Floater Commander
88 Live Floater Leader
89 Live Floater Engineer
90 Live Floater Medic
91 Live Floater Navigator
92 Live Floater Soldier
93 Live Celatid Terrorist
94 Live Silacoid Terrorist
95 Live Chryssalid Terrorist
96 Live Reaper Terrorist

*NOTE: there are no entries for the Sectopod or Cyberdisc terrorists. Also, the three tank entries are not used by the game. If you hack RESEARCH.DAT to open these as research possibilities, the title of the research project will be "NOT USED."


Each record in RESEARCH.DAT consists of 22 bytes. In what follows, the hex offset is written in bold, followed by a description of the purpose of the byte(s).

00-01: The first two bytes determine the amount of time it takes to perform the research, written low-high (for example 12 34 refers to the hex number 3412). This is then randomized ±50% when the project is started before being stored in PROJECT.DAT.

02-04: These three bytes determine the name of the research topic as it appears on the Current Research screen in the game. The table below shows how different types of research are coded:

02 03 04 Description
00 00 00 Laser Weapons
31-3D 00 00 Alien Artifacts
41-4B 00 00 Alien Autopsy
50-58 00 00 UFO Components
00 01-0B 01-07 Live Alien
00 00 01-1d X-Com Craft and Armaments, Heavy Weapons Platforms, Base Facilities, Alien Research

Note that, for live aliens, bytes 03 and 04 determine the alien's species and rank, respectively, with the same convention as in ASTORE.DAT. Also, for Alien Autopsy researches, the second bit of byte 02 determines the species.

Also note that, in addition to determining the name of the research project for the purposes of the Current Research control screen, these bytes also determine what object, if any, needs to be on hand in order for the research to begin. Namely, if either or bytes 02 or 03 are non-zero, the research requires that the named object be in the base's stores either BASE.DAT or ASTORE.DAT in order for the research to be listed.

05: non-zero only for some live aliens. It's meaning is uncertain.

06: with the exception of 0B which is unique to researching the single "Laser Weapons" starting topic, this field indicates the category in the UFOpaedia into which the topic falls:

00 = X-Com Craft and Armament
01 = Heavy Weapons Platforms
02 = Weapons and Equipment
03 = Alien Artifacts
04 = Base Facilities
05 = Alien Life Forms (corpses)
06 = Alien Life Forms (live aliens) and Alien Research
07 = UFO Components
0B = Laser Weapons

07: determines the specific UFOpaedia sub-entry, within each category, that the research unlocks. In the case of live aliens, this byte contains their race. In the case of categories 2 and 3 (most Battlescape items), this value is (also) the direct index to the OBDATA.DAT record.

08: determines the number of points awarded when the research is completed.

09: seems to always be 00. [Unused]

0A: is a boolean flag indicating, when true, that the research has been completed and cannot be repeated. For research topics that can be repeated (e.g., research on living aliens), this byte is always 00. Manually setting this byte to 01, however, does not in any way give the player credit for completing the research - it will not be unlocked in the UFOpaedia, nor will production options be made available. It is simply to prevent a topic from appearing in the list of available research topics once it has been completed.

Bytes 0B-0D are 00. High bytes of 32-bit 0x0A field. [Unused]

0E: a boolean value indicating whether or not the research topic requires one or more prerequisites. It is true when there is not a prerequisite.

Bytes 0F-11 are 00. High bytes of 32-bit 0x0E field. [Unused]

12: a boolean flag indicating that the prerequisites have been fulfilled. It is true when either the prerequisites have been satisfied or there are no prerequisites and false when there is a prerequisite which has not been met. Changing this value is a way to get around prerequisite research topics.

Bytes 13-15 are 00. High bytes of 32-bit 0x12 field. [Unused]

Cheats and Hacks

First, what you cannot do with RESARCH.DAT: there is no way to modify this file to instantly get credit for completing research, open UFOpaedia entries, or unlock production capabilities.

Things you can do, if you so choose:

  • Modify the time required to complete research (bytes 00-01). Note that this is the initial time, not the time remaining on research you've already started. For that, see PROJECT.DAT.
  • Modify the points you obtain by completing the research projects (byte 08).
  • Make research projects available without completing their prerequisites (byte 12).
  • Eliminate the need to possess an object (either artifact or live alien) before researching it. Warning: this one's a bit odd: change bytes 02-04 to 00 00 11. This will make "NOT USED" appear in the list of research topics (it is the name of the Laser Cannon Tank - a project not used by the game). Research "NOT USED", and once it is completed, you will have access to the UFOpaedia entry access to any research that is lower in the research tree, and access to the relevant production capabilities.
  • Go straight to Cydonia, if you set byte 0A in offset 58 (for the Martian Solution) to a value of 01, and you have an Avenger, you will be able to go to Cydonia on day one if you so choose.

See Also

  • Research
  • FACIL.DAT - Information on facilities you can / can't build at the moment
  • PRODUCT.DAT - Information on manufacturable items you can / can't manufacture at the moment
  • PROJECT.DAT - Information on projects currently being researched at bases
  • OBDATA.DAT - Statistics on items in the game
  • UP.DAT - Stores information on the UFOpaedia entries
  • Saved Game Files