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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 · 5 steps
    1. Mex ×2
    2. Wind
    3. Mex
    4. Wind ×2
    5. Bot LabBot Labdone 1:05 · 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 · 27 steps
    1. Windfor Air
    2. GraverobberGraverobber
    3. Windfor Air
    4. GraverobberGraverobber
    5. Wind ×3
    6. Construction BotCon bot
    7. GraverobberGraverobber
    8. Con turret
    9. Construction BotCon bot
    10. Energy storage
    11. Mex
    12. TrasherTrasher
    13. GruntGrunt
    14. Construction BotCon bot
    15. Converter ×4
    16. Mex
    17. JellyfishJellyfish
    18. Wind ×5
    19. Mex
    20. Wind
    21. Bot LabEat Bot Labreclaimed for its metal
    22. Wind
    23. Con turret
    24. Wind
    25. Radar TowerRadar Tower
    26. Wind
    27. ShipyardShipyarddone 4:28 · 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 · 4 steps
    1. Construction ShipCon ship
    2. HerringMissile corvette
    3. OppressorDestroyerdone 5:04 · typical 5:55
    4. Mex
  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 · 111 steps
    1. Converter
    2. RiptideFrigatedone 5:25 · typical 4:40
    3. Mex
    4. Converter ×2
    5. RiptideFrigate
    6. GuardGuard
    7. Converter
    8. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    9. GuardGuard
    10. RiptideFrigate
    11. Geothermal PowerplantGeodone 7:20 · typical 8:07
    12. Death CavalryDeath Cavalry
    13. Mex
    14. RiptideFrigate
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. RiptideFrigate
    17. Advanced Metal ExtractorT2 mexdone 8:17 · typical 9:24
    18. RiptideFrigate ×2
    19. GuardGuard ×2
    20. Advanced Metal ExtractorT2 mex
    21. GuardGuard
    22. OppressorDestroyer
    23. GuardGuard
    24. Advanced Metal ExtractorT2 mex
    25. GuardGuard
    26. Advanced Metal ExtractorT2 mex
    27. Death CavalryDeath Cavalry ×3
    28. OppressorDestroyer ×2
    29. Con turret
    30. Advanced Metal ExtractorT2 mex
    31. Con turret
    32. Wind ×2
    33. Wind
    34. Wind
    35. Wind ×2
    36. Wind
    37. Wind ×2
    38. RiptideFrigate
    39. Wind
    40. Wind
    41. Wind
    42. HerringMissile corvette
    43. Wind
    44. Wind
    45. Wind ×2
    46. HerringMissile corvette
    47. Wind
    48. Wind
    49. HerringMissile corvette
    50. Wind
    51. Wind
    52. HerringMissile corvette
    53. Construction ShipCon ship
    54. Wind
    55. Wind
    56. Advanced Metal ExtractorT2 mex
    57. Converter
    58. HerringMissile corvette
    59. Wind
    60. Converter
    61. RiptideFrigate
    62. Wind
    63. Converter
    64. Wind
    65. RiptideFrigate
    66. Converter
    67. Wind
    68. Con turret
    69. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    70. HerringMissile corvette
    71. Wind
    72. HerringMissile corvette
    73. Wind
    74. HerringMissile corvette
    75. RiptideFrigate
    76. Wind
    77. RiptideFrigate ×2
    78. ShipyardShipyarddone 12:33
    79. RiptideFrigate
    80. OppressorDestroyer
    81. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 13:57
    82. RiptideFrigate
    83. Converter
    84. OppressorDestroyer
    85. Converter
    86. RiptideFrigate
    87. Converter
    88. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    89. Converter ×2
    90. RiptideFrigate ×2
    91. Converter
    92. RiptideFrigate
    93. Converter
    94. RiptideFrigate
    95. Converter
    96. RiptideFrigate
    97. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    98. RiptideFrigate ×2
    99. Converter
    100. RiptideFrigate
    101. Vehicle PlantVehicle Plantdone 14:36
    102. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    103. RiptideFrigate
    104. Converter ×2
    105. RiptideFrigate
    106. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    107. Converter
    108. RiptideFrigate
    109. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    110. RiptideFrigate
    111. Converter

Counts are medians over the build's games: half of them build more, half fewer. The example game is Uncle_Cane's (37 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

Uncle_Cane

37.3 OS · 15/10/2026

Open source match ↗

5 received units · includes a constructor
80 metal received · 58777 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