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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

Cortex Geo sea build order · Supreme Isthmus

The usual Cove-side sea opening: bot lab for an early defensive bot, shipyard in the cove, then frigates, destroyers and submarines to contest the sea and defend the base.

Usually shipyard in the cove (98%)

#naval #defence · 1098 distinct matches · 104 players · 83% of Cortex Geo sea games · team won 52% of 1227 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 3:16

  1. Grab 3 mex and open wind while laying down bot lab.
  2. Get bot lab up then push straight into shipyard.
  3. Finish shipyard, start pumping subs and frigates to contest sea.
  4. Add submarine, frigate and destroyer to hold sea lanes.
  5. Bring geo online and transition into mixed navy.

Phase by phase

TYPICAL OF ITS 1098 GAMES
  1. 1
  2. 2
  3. 3
  4. 4
PLAY THE OPENING

Follow the example game's first 6:00 step by step: what to build now, what comes next, and where it goes. At 1× it keeps pace with your own game.

  1. 1

    Up to the Bot Lab

    Economy
    • Metal Extractor3Mex
    • Wind Turbine3Wind
    Order
    1. Bot LabBot Lab after 3 mex, 3 winddone ~1:12, middle half 1:07–1:26

    Some games also: wind for allies (48%)

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 3 steps
    1. Mex ×3
    2. Wind ×4
    3. Bot LabBot Labdone 1:10 · typical 1:12
  2. 2

    Bot Lab to Shipyard

    Economy
    • Metal Extractor1Mex
    • Wind Turbine2Wind
    Order
    1. ShipyardShipyard after 4 mex, 5 wind, 1 energy storagedone ~3:17, middle half 3:02–3:33
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (45%) · trasher (40%) · energy storage (33%) · wind for allies (31%)

    By 2:51 in all: 4 mex · 5 wind · 1 energy storage

    The example game in this phase · 4 steps
    1. Construction BotCon bot
    2. GraverobberGraverobber ×2
    3. Construction BotCon bot ×2
    4. ShipyardShipyarddone 2:33 · typical 3:17
  3. 3

    Shipyard to 5:00

    Economy
    • Metal Extractor4Mex
    Order
    1. Bot LabEat Bot Lab
    Builders
    • Construction Ship1 Con ship
    Army
    • Riptide2 Frigate
    • Orca1 Submarine
    Other
    • Radar Tower1 Radar Tower

    Some games also: missile corvette (49%) · Guard (49%) · wind (48%) · destroyer (45%) · gunboat (39%)

    By 5:00 in all: 8 mex · 6 wind · 1 energy storage · 1 con turret

    The example game in this phase · 29 steps
    1. Mex
    2. Wind
    3. HerringMissile corvette
    4. Construction ShipCon ship
    5. Wind
    6. Construction ShipCon ship
    7. OrcaSubmarinedone 3:42 · typical 4:17
    8. Mex ×2
    9. Wind
    10. Mex
    11. Bot LabEat Bot Labreclaimed for its metal
    12. HerringMissile corvette
    13. Wind
    14. UrchinUrchin
    15. Mex
    16. HerringMissile corvette
    17. Converter
    18. HerringMissile corvette
    19. Wind
    20. GuardGuard
    21. HerringMissile corvette
    22. Wind
    23. Death CavalryDeath Cavalry
    24. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    25. Wind
    26. Radar TowerRadar Tower
    27. Wind
    28. HerringMissile corvette
    29. GuardGuard
  4. 4

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • Wind Turbine8Wind
    • Energy Converter1Converter
    Builders
    • Construction Turret1 Con turret
    • Death Cavalry2 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Guard2 Guard
    • Riptide5 Frigate
    • Oppressor2 Destroyer
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: geo (47%) · Thistle (40%) · submarine (34%)

    By 10:00 in all: 10 mex · 15 wind · 1 geo · 4 converter · 1 energy storage · 2 con turret

    The example game in this phase · 179 steps
    1. Converter
    2. OppressorDestroyerdone 6:06 · typical 5:52
    3. Wind
    4. ThistleThistle
    5. Shark's TeethShark's Teeth ×2
    6. Wind ×2
    7. GuardGuard
    8. Wind
    9. Converter
    10. RiptideFrigatedone 6:30 · typical 4:37
    11. UrchinUrchin
    12. Mex
    13. Wind
    14. GuardGuard
    15. RiptideFrigate
    16. GuardGuard
    17. Wind
    18. ThistleThistle
    19. Wind
    20. Construction ShipCon ship
    21. Converter
    22. RiptideFrigate
    23. GuardGuard
    24. Naval Construction Turret
    25. Wind
    26. Death CavalryDeath Cavalry
    27. Wind
    28. Advanced Metal ExtractorT2 mexdone 8:50 · typical 9:22
    29. GuardGuard
    30. RiptideFrigate
    31. Con turret
    32. Naval Construction Turret
    33. Tidal ×2
    34. RiptideFrigate
    35. Tidal ×2
    36. RiptideFrigate
    37. Tidal ×2
    38. Advanced Metal ExtractorT2 mex
    39. Death CavalryDeath Cavalry
    40. Tidal
    41. Death CavalryDeath Cavalry
    42. Tidal
    43. Advanced Metal ExtractorT2 mex
    44. Tidal
    45. Naval Construction Turret
    46. RiptideFrigate
    47. Con turret
    48. Tidal
    49. Death CavalryDeath Cavalry
    50. Tidal ×2
    51. RiptideFrigate
    52. Tidal
    53. Wind
    54. Tidal
    55. Wind
    56. RiptideFrigate
    57. Tidal
    58. Wind
    59. Advanced Metal ExtractorT2 mex
    60. Naval Construction Turret
    61. Wind
    62. Death CavalryDeath Cavalry
    63. OppressorDestroyer
    64. Converter
    65. Wind
    66. Naval Construction Turret
    67. Wind
    68. OrcaSubmarine
    69. UrchinUrchin
    70. Naval Construction Turret
    71. Wind ×2
    72. Tidal
    73. Converter
    74. OrcaSubmarine
    75. Wind
    76. HerringMissile corvette
    77. Tidal
    78. Advanced Metal ExtractorT2 mex
    79. Wind
    80. OrcaSubmarine
    81. Tidal
    82. Wind
    83. Tidal
    84. Mex
    85. Wind
    86. Tidal
    87. Death CavalryDeath Cavalry
    88. Tidal
    89. Converter
    90. Tidal
    91. OrcaSubmarine
    92. Advanced Metal ExtractorT2 mex
    93. Wind
    94. Tidal
    95. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    96. Tidal
    97. Wind
    98. Tidal
    99. Wind
    100. Tidal ×2
    101. Converter
    102. Tidal ×2
    103. Death CavalryDeath Cavalry
    104. Tidal
    105. Wind ×2
    106. OrcaSubmarine
    107. Tidal
    108. Wind ×2
    109. Tidal
    110. Death CavalryDeath Cavalry
    111. Tidal
    112. Converter
    113. Tidal
    114. Death CavalryDeath Cavalry
    115. Wind
    116. Tidal
    117. Wind
    118. RiptideFrigate
    119. Wind
    120. RiptideFrigate
    121. Wind
    122. Converter
    123. HerringMissile corvette ×3
    124. Wind
    125. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    126. HerringMissile corvette
    127. Naval Construction Turret
    128. Wind ×2
    129. HerringMissile corvette
    130. Naval Construction Turret
    131. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 14:17
    132. Wind
    133. RiptideFrigate
    134. Naval Construction Turret
    135. Converter
    136. RiptideFrigate
    137. Wind
    138. Tidal
    139. OppressorDestroyer
    140. Tidal
    141. Wind ×3
    142. RiptideFrigate
    143. Tidal
    144. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    145. Converter
    146. RiptideFrigate
    147. Tidal
    148. Wind
    149. RiptideFrigate
    150. Tidal
    151. Wind
    152. Tidal
    153. RiptideFrigate
    154. Wind
    155. Tidal
    156. RiptideFrigate
    157. Tidal
    158. Wind
    159. Converter
    160. Tidal
    161. RiptideFrigate
    162. Tidal
    163. Wind
    164. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    165. Tidal
    166. RiptideFrigate
    167. Tidal
    168. Wind ×2
    169. RiptideFrigate
    170. Tidal
    171. Wind
    172. Tidal
    173. Converter
    174. RiptideFrigate
    175. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    176. Construction ShipCon ship
    177. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    178. Wind
    179. Construction ShipCon ship

Counts are medians over the build's games: half of them build more, half fewer. The example game is _X_'s (41 OS, 08/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:48 · in 70% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 83% of games
  • Hercules1 Light transport from Airfirst at 2:00 · in 74% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 7:44 · in 89% of games

How it plays out

Typical game of this build, running totals by minute

Metal produced

010k20k30k
0:005:0010:0015:00

metal

Enemy metal destroyed

05k10k
0:005:0010:0015:00

metal

Own metal lost

02.5k5k7.5k
0:005:0010:0015:00

metal

1227 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156600
4:002894051
5:00410315052
6:005454461231
7:006936931545
8:0086071578891
9:001047124951344
10:001263036252031
11:001519548242838
12:001810762243720
13:002139973574441
14:002501686445353
15:002886197626354
WHAT THE NUMBERS SAY

Matches the role's own norm almost exactly, sitting at the typical 52% team win rate for Geo sea.

  • + Reliable timing: bot lab by 1:12 and shipyard by 3:16 in the middle half of games.
  • − Own metal lost climbs to 6854 by 15:00, showing sea fights stay costly.
THE EXAMPLE YOU ARE READING

_X_

41.0 OS · 08/10/2026

Open source match ↗

4 received units · includes a constructor
185 metal received · 12451 energy received

Allied construction assistance is unknown. Timings are observations, not a promise of solo reproducibility.

Typical milestones

Bot Lab1:12Middle 50%: 1:07–1:26 · n=1207
Shipyard3:17Middle 50%: 3:02–3:33 · n=1219
Orca4:17Middle 50%: 3:51–4:59 · n=845
Riptide4:37Middle 50%: 4:08–5:21 · n=1192
Oppressor5:52Middle 50%: 5:08–6:36 · n=1114
Geothermal Powerplant8:00Middle 50%: 7:01–9:03 · n=729
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=1060

Played most by

sirniho125games of this buildSHOGVN100games of this buildOptimusprimenutt86games of this buildPRO_Rerory52games of this buildTheSituation43games of this build