Underground building

**Underground buildings** are a category of facility built under land surfaces.

## Models

### Modern models

There are 94 models in the Modern database (v491):

1. 8K63U complex
2. 8K65U complex
3. ACINT SOSUS station
4. Aircraft underground shelter (medium x 4)
5. Aircraft underground shelter (medium x 8)
6. Aircraft underground shelter (medium x 10)
7. Aircraft underground shelter (medium x 12)
8. Aircraft underground shelter (medium x 30)
9. Aircraft underground shelter (large x 4)
10. Aircraft underground shelter (large x 8)
11. Aircraft underground shelter (large x 10)
12. Aircraft underground shelter (large x 12)
13. Aircraft underground shelter (large x 30)
14. Ammo bunker (mountain)
15. Ammo bunker (underground)
16. AvGas underground tank (100 kL)
17. AvGas underground tank (150 kL)
18. AvGas underground tank (200 kL)
19. AvGas underground tank (400 kL)
20. AvGas underground tank (750 kL)
21. AvGas underground tank (1500 kL)
22. AvGas underground tank (3000 kL)
23. Cave
24. COMINT station
25. Comm center
26. Command bunker
27. Comms jammer station
28. Communications tunnel
29. DF-4 complex
30. DF-5 complex
31. DF-5A complex
32. DF-5B complex
33. DF-5C complex
34. DF-41 complex
35. DF-ZF complex
36. ELINT station
37. Large C3M bunker
38. Launch control facility
39. Medium C3M bunker
40. Minuteman II complex
41. Minuteman III complex (1971)
42. Minuteman III complex (2009)
43. Minuteman III complex (2020)
44. Missile alert facility
45. OECM station
46. Peacekeeper complex (1987)
47. R-36 complex
48. R-36O complex
49. R-36P complex
50. RS-10 complex
51. RS-10M complex (1971)
52. RS-10M complex (1974)
53. RS-10M complex (1992)
54. RS-12 complex (1969)
55. RS-12 complex (1975)
56. RS-12 complex (1992)
57. RS-12M Topol complex (1989)
58. RS-12M Topol complex (1992)
59. RS-12M1 Topol-M complex
60. RS-16A complex (SS-17 Mod 1)
61. RS-16A complex (SS-17 Mod 2)
62. RS-16B complex (1981)
63. RS-16B complex (1992)
64. RS-18A Mod 1 complex (1978)
65. RS-18A Mod 2 complex (1978)
66. RS-18A Mod 2 complex (1992)
67. RS-18B Mod 3 complex (1991)
68. RS-18B Mod 3 complex (1992)
69. RS-20A Mod 1 complex (1977)
70. RS-20A Mod 1 complex (1992)
71. RS-20A Mod 2 complex
72. RS-20B Mod 3 complex (1991)
73. RS-20B Mod 3 complex (1992)
74. RS-20B Mod 4 complex (1979)
75. RS-20B Mod 4 complex (1992)
76. RS-20V Mod 5 complex (1988)
77. RS-20V Mod 5 complex (1992)
78. RS-20V Mod 6 complex (1990)
79. RS-20V Mod 6 complex (1992)
80. RS-22 complex (1990)
81. RS-22 complex (1992)
82. RS-24 Yars complex
83. S-2 complex
84. S-3 complex
85. Sector control station
86. Shahab-3 complex
87. SIGINT station
88. Titan II complex
89. Underground depot
90. Underground factory
91. Underground hardened bunker
92. Underground medical bunker
93. Underground quarters bunker
94. Underground storage bunker

### Modern models

There are 59 models in the Modern database (v491):

1. Aircraft underground shelter, medium x 4
2. Aircraft underground shelter, medium x 8
3. Aircraft underground shelter, medium x 10
4. Aircraft underground shelter, medium x 12
5. Aircraft underground shelter, medium x 30
6. Aircraft underground shelter, large x 4
7. Aircraft underground shelter, large x 8
8. Aircraft underground shelter, large x 10
9. Aircraft underground shelter, large x 12
10. Aircraft underground shelter, large x 30
11. Ammo bunker, mountain
12. Ammo bunker, underground
13. AvGas underground tank, 100 kL
14. AvGas underground tank, 150 kL
15. AvGas underground tank, 200 kL
16. AvGas underground tank, 400 kL
17. AvGas underground tank, 750 kL
18. AvGas underground tank, 1500 kL
19. AvGas underground tank, 3000 kL
20. Bunker, ACINT SOSUS station
21. Bunker, COMINT station
22. Bunker, Comm center
23. Bunker, ELINT
24. Bunker, Large C3M
25. Bunker, Launch control facility
26. Bunker, Medium C3M
27. Bunker, Sector control station
28. Bunker, SIGINT station
29. SSM, Minuteman II (USAF 1966)
30. SSM, Minuteman III (USAF 1971)
31. SSM, S-2 (France 1972)
32. SSM, SS-4 Sandal Mod 2 (USSR 1963)
33. SSM, SS-5 Skean Mod 2 (USSR 1965)
34. SSM, SS-9 Scarp Mod 2 (USSR 1967)
35. SSM, SS-9 Scarp Mod 3 (USSR 1968)
36. SSM, SS-9 Scarp Mod 4 (USSR 1972)
37. SSM, SS-11 Sego Mod 1 (USSR 1970)
38. SSM, SS-11 Sego Mod 2 (USSR 1971)
39. SSM, SS-13 Savage Mod 1 (USSR 1969)
40. SSM, SS-13 Savage Mod 2 (USSR 1975)
41. [[SSM, SS-17 Spanker Mod 1 (USSR 1976)]
42. SSM, SS-17 Spanker Mod 2 (USSR 1976)
43. SSM, SS-18 Satan Mod 1 (USSR 1977)
44. SSM, SS-18 Satan Mod 2 (USSR 1977)
45. SSM, SS-18 Satan Mod 3 (USSR)
46. SSM, SS-18 Satan Mod 4 (USSR 1979)
47. SSM, SS-19 Stiletto Mod 1 (USSR 1976)
48. SSM, SS-19 Stiletto Mod 2 (USSR 1978)
49. SSM, SS-19 Stiletto Mod 3 (USSR)
50. SSM, Titan II (USAF 1964)
51. Underground cave
52. Underground command bunker
53. Underground communications tunnel
54. Underground depot
55. Underground factory
56. Underground hardened bunker
57. Underground medical bunker
58. Underground quarters bunker
59. Underground storage bunker