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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

Cortex Geo sea build order · Supreme Isthmus

Builds a bot lab then shipyard (usually in the cove), eats the bot lab for metal, and pumps out submarines, frigates and destroyers to contest the sea while supporting allies with energy.

Usually shipyard in the cove (98%)

#naval #eco · 1973 distinct matches · 199 players · 80% of Cortex Geo sea games · team won 53% of 2286 · Recently observed

HOW TO PLAY IT

Key timing: Bot Lab by 1:12, Shipyard by 3:17

  1. Open 3 mex into wind, then drop Bot Lab in cove.
  2. Finish Bot Lab, keep teching mex and wind.
  3. Get Shipyard up and start pumping subs and frigates.
  4. Eat the Bot Lab for metal once you have T1 units defending.
  5. Push out submarine, frigate, destroyer to contest sea.
  6. Bring geothermal online and transition toward T2 constructor.

Phase by phase

TYPICAL OF ITS 1973 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
    • Wind Turbine1Windfor allies
    Order
    1. Bot LabBot Lab after 3 mex, 3 winddone ~1:12, middle half 1:07–1:25

    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, 4 wind, 1 energy storagedone ~3:19, middle half 3:02–3:37
    Builders
    • Graverobber3 Graverobber
    • Construction Bot3 Con bot
    Army
    • Grunt1 Grunt

    Some games also: con turret (47%) · trasher (39%) · energy storage (36%)

    By 2:52 in all: 4 mex · 4 wind · 1 energy storage

    The example game in this phase · 11 steps
    1. GraverobberGraverobber
    2. Construction BotCon bot ×3
    3. GraverobberGraverobber
    4. Mex
    5. GraverobberGraverobber
    6. GruntGrunt
    7. TrasherTrasher
    8. Dragon's TeethDragon's Teeth ×3
    9. Mex
    10. Dragon's TeethDragon's Teeth ×3
    11. ShipyardShipyarddone 3:22 · typical 3:19
  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 (48%) · Guard (48%) · wind (48%) · destroyer (43%) · gunboat (39%)

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

    The example game in this phase · 21 steps
    1. Dragon's TeethDragon's Teeth ×9
    2. OrcaSubmarinedone 3:40 · typical 4:17
    3. Dragon's TeethDragon's Teeth ×4
    4. Mex
    5. Dragon's TeethDragon's Teeth ×3
    6. Construction ShipCon ship
    7. Dragon's TeethDragon's Teeth ×2
    8. GuardGuard ×2
    9. Construction ShipCon shipfor Suicide front
    10. Radar TowerRadar Tower
    11. Tidal
    12. Mex
    13. Con turret
    14. HerringMissile corvette
    15. Bot LabEat Bot Labreclaimed for its metal
    16. Dragon's TeethDragon's Teeth ×2
    17. Mex
    18. Dragon's TeethDragon's Teeth
    19. RiptideFrigatedone 4:51 · typical 4:40
    20. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    21. RiptideFrigate
  4. 4

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • Wind Turbine8Wind
    • Energy Converter2Converter
    Order
    1. Geothermal PowerplantGeo after 9 mex, 9 wind, 2 converterin 54% of games
    Builders
    • Construction Turret1 Con turret
    • Death Cavalry2 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Guard1 Guard
    • Riptide5 Frigate
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: Thistle (40%) · submarine (30%)

    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 · 165 steps
    1. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    2. Death CavalryDeath Cavalry
    3. Wind
    4. Geothermal PowerplantGeodone 7:50 · typical 8:07
    5. Tidal
    6. Wind ×2
    7. OppressorDestroyerdone 6:37 · typical 5:55
    8. Wind
    9. Converter
    10. Wind ×2
    11. RiptideFrigate
    12. Wind ×2
    13. Construction ShipCon ship
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. Converter
    16. RiptideFrigate
    17. Wind
    18. Converter
    19. Wind
    20. Advanced Metal ExtractorT2 mexdone 9:19 · typical 9:24
    21. RiptideFrigate
    22. Wind
    23. Converter ×3
    24. Death CavalryDeath Cavalry
    25. Con turret
    26. Converter
    27. Death CavalryDeath Cavalry
    28. Converter
    29. Death CavalryDeath Cavalry
    30. Wind ×2
    31. Converter
    32. Wind
    33. Death CavalryDeath Cavalry
    34. Wind
    35. Converter
    36. Advanced Metal ExtractorT2 mex
    37. GuardGuard
    38. Wind
    39. OppressorDestroyer
    40. Wind ×3
    41. Converter
    42. RiptideFrigate
    43. Wind ×3
    44. Construction ShipCon ship
    45. Converter
    46. RiptideFrigate
    47. Con turret
    48. RiptideFrigate
    49. Wind
    50. Advanced Metal ExtractorT2 mex
    51. Wind
    52. Naval Construction Turret
    53. Wind
    54. Death CavalryDeath Cavalry
    55. Wind
    56. Tidal
    57. Converter
    58. Mex
    59. Wind ×2
    60. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2
    61. Wind ×2
    62. OppressorDestroyer
    63. Tidal
    64. Converter
    65. Wind
    66. Shark's TeethShark's Teeth
    67. Wind
    68. Shark's TeethShark's Teeth
    69. Wind
    70. Naval Construction Turret
    71. Shark's TeethShark's Teeth
    72. Tidal
    73. Converter
    74. Shark's TeethShark's Teeth ×2
    75. Con turret
    76. Shark's TeethShark's Teeth
    77. Naval Construction Turret
    78. Shark's TeethShark's Teeth ×2
    79. Wind
    80. Naval Construction Turret
    81. Shark's TeethShark's Teeth
    82. Wind
    83. Tidal
    84. Wind
    85. Shark's TeethShark's Teeth
    86. Wind
    87. Converter
    88. Shark's TeethShark's Teeth
    89. Naval Construction Turret
    90. Wind ×2
    91. Advanced Metal ExtractorT2 mex
    92. Naval Construction Turret
    93. Tidal
    94. Wind
    95. OrcaSubmarine
    96. Wind
    97. Converter
    98. Naval Construction Turret
    99. Wind
    100. Tidal
    101. Naval Construction Turret
    102. Wind
    103. Shark's TeethShark's Teeth ×2
    104. Wind
    105. Converter
    106. Shark's TeethShark's Teeth
    107. Tidal
    108. OrcaSubmarine
    109. Shark's TeethShark's Teeth
    110. Con turret
    111. Tidal
    112. Shark's TeethShark's Teeth
    113. OrcaSubmarine
    114. Shark's TeethShark's Teeth ×2
    115. Wind ×2
    116. OrcaSubmarine
    117. Shark's TeethShark's Teeth
    118. Wind
    119. Tidal
    120. Wind
    121. Converter
    122. Advanced ShipyardAdvanced Shipyarddone 13:48
    123. RiptideFrigate
    124. Wind
    125. Advanced Metal ExtractorT2 mex
    126. Wind
    127. Con turret
    128. Wind
    129. UrchinUrchin
    130. Wind
    131. Mex
    132. Wind
    133. Converter
    134. Wind
    135. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    136. Wind
    137. HerringMissile corvette
    138. Wind ×2
    139. HerringMissile corvette
    140. Wind
    141. Advanced Construction SubAdvanced Construction Sub
    142. Tidal
    143. Converter
    144. HerringMissile corvette
    145. Wind
    146. Con turret
    147. Converter
    148. Aircraft PlantAircraft Plantnot finished by 15:00
    149. PathfinderPathfinder
    150. HerringMissile corvette
    151. Wind
    152. Advanced Metal ExtractorT2 mex
    153. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    154. PathfinderPathfinder
    155. Wind
    156. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:53
    157. HerringMissile corvette
    158. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    159. Wind
    160. PathfinderPathfinder
    161. Mex
    162. Con turret
    163. Death CavalryDeath Cavalry
    164. Wind
    165. PathfinderPathfinder

Counts are medians over the build's games: half of them build more, half fewer. The example game is _X_'s (39 OS, 15/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:42 · in 73% of games

You get

  • Finch1 Finch from Airfirst at 1:52 · in 81% of games
  • Hercules1 Light transport from Airfirst at 1:59 · in 75% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 7:44 · in 90% 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

2286 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039800
2:0092900
3:00156100
4:002865051
5:00406814652
6:005417440231
7:006894905526
8:0085781526891
9:001043024351321
10:001255834711987
11:001509046412760
12:001807260173623
13:002132772174344
14:002486384785190
15:002876897226201
WHAT THE NUMBERS SAY

This is the role's own baseline, winning a bit over half its games with steady eco scaling and sea trades roughly matching losses.

  • + Team wins slightly over half of games played.
  • + Metal production scales from ~4k to ~29.5k by 15:00.
  • − Own metal lost climbs to 6875 by 15:00, matching kills closely.
  • − T2 factory only reached in 40% of games, limiting late power.
THE EXAMPLE YOU ARE READING

_X_

39.0 OS · 15/10/2026

Open source match ↗

1 received units · includes a constructor
2253 metal received · 48198 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:07–1:25 · n=2259
Shipyard3:19Middle 50%: 3:02–3:37 · n=2277
Orca4:17Middle 50%: 3:52–4:59 · n=1543
Riptide4:40Middle 50%: 4:09–5:21 · n=2226
Oppressor5:55Middle 50%: 5:13–6:42 · n=2105
Geothermal Powerplant8:07Middle 50%: 7:10–9:25 · n=1542
Advanced Metal Extractor9:24Middle 50%: 8:46–10:21 · n=2003

Played most by

SHOGVN227games of this buildElpoloow178games of this buildsirniho124games of this buildOptimusprimenutt92games of this buildhihimik79games of this build