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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 · 1964 distinct matches · 199 players · 80% of Cortex Geo sea games · team won 53% of 2276 · 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 1964 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. Windfor Air
    3. Mex
    4. Solar
    5. Bot LabBot Labdone 1:03 · 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 · 17 steps
    1. Solar
    2. GraverobberGraverobber
    3. Windfor Air
    4. Wind
    5. GraverobberGraverobber
    6. Wind
    7. Construction BotCon bot
    8. Wind
    9. GraverobberGraverobber
    10. Con turret
    11. Construction BotCon bot
    12. Energy storage
    13. Mex
    14. TrasherTrasher
    15. GruntGrunt
    16. Construction BotCon bot
    17. ShipyardShipyarddone 3:31 · 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 · 20 steps
    1. Converter ×2
    2. Bot LabEat Bot Labreclaimed for its metal
    3. Converter
    4. Mex
    5. Converter
    6. RiptideFrigatedone 3:44 · typical 4:40
    7. Converter ×2
    8. Death CavalryDeath Cavalry
    9. Converter
    10. Mex
    11. Wind
    12. Construction ShipCon ship
    13. Wind ×2
    14. HerringMissile corvette
    15. Wind
    16. OppressorDestroyerdone 4:53 · typical 5:56
    17. GuardGuard
    18. Wind ×2
    19. GuardGuard
    20. HerringMissile corvette
  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 · 84 steps
    1. OppressorDestroyer
    2. Mex
    3. GuardGuard
    4. Mex
    5. RiptideFrigate
    6. GuardGuard
    7. RiptideFrigate
    8. Mex
    9. RiptideFrigate
    10. GuardGuard
    11. Advanced Metal ExtractorT2 mexdone 7:46 · typical 9:24
    12. RiptideFrigate
    13. Radar TowerRadar Tower
    14. HerringMissile corvette
    15. GuardGuard ×2
    16. HerringMissile corvette
    17. Advanced Metal ExtractorT2 mex
    18. HerringMissile corvette ×5
    19. Mex
    20. Con turret
    21. HerringMissile corvette ×2
    22. Advanced Metal ExtractorT2 mex
    23. HerringMissile corvette ×2
    24. OppressorDestroyer
    25. RiptideFrigate
    26. Wind
    27. RiptideFrigate
    28. Wind
    29. RiptideFrigate
    30. Wind ×2
    31. RiptideFrigate
    32. Wind
    33. RiptideFrigate
    34. Wind ×2
    35. Advanced Metal ExtractorT2 mex
    36. Wind ×3
    37. Con turret
    38. Wind
    39. RiptideFrigate
    40. Wind ×3
    41. RiptideFrigate
    42. Construction ShipCon ship
    43. Wind ×2
    44. RiptideFrigate
    45. Wind
    46. Tidal
    47. Wind
    48. Tidal
    49. Wind
    50. Tidal
    51. Wind
    52. Tidal
    53. HerringMissile corvette
    54. Wind
    55. Geothermal PowerplantGeodone 13:22 · typical 8:07
    56. Wind ×2
    57. Tidal
    58. HerringMissile corvette
    59. Wind
    60. OppressorDestroyer
    61. Naval Construction Turret
    62. Wind
    63. Naval Construction Turret ×2
    64. OppressorDestroyer
    65. ShipyardShipyarddone 13:30
    66. Wind
    67. Tidal
    68. OppressorDestroyer
    69. Tidal
    70. Death CavalryDeath Cavalry
    71. Wind
    72. OppressorDestroyer
    73. Death CavalryDeath Cavalry
    74. HerringMissile corvette
    75. Wind
    76. Death CavalryDeath Cavalry
    77. HerringMissile corvette
    78. Advanced Metal ExtractorT2 mex
    79. HerringMissile corvette
    80. Death CavalryDeath Cavalry
    81. Converter
    82. HerringMissile corvette
    83. Converter
    84. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is El_Turco's (38 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 76% 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

2276 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039800
2:0092900
3:00156000
4:002865051
5:00406614652
6:005416440232
7:006893905528
8:0085761526891
9:001042924341321
10:001255634701982
11:001508946402761
12:001806760143611
13:002130172054344
14:002483884745186
15:002875097086199
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

El_Turco

37.5 OS · 15/10/2026

Open source match ↗

7 received units · includes a constructor
510 metal received · 40626 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=2249
Shipyard3:19Middle 50%: 3:02–3:37 · n=2267
Orca4:18Middle 50%: 3:52–4:59 · n=1538
Riptide4:40Middle 50%: 4:09–5:21 · n=2216
Oppressor5:56Middle 50%: 5:13–6:43 · n=2095
Geothermal Powerplant8:07Middle 50%: 7:10–9:24 · n=1534
Advanced Metal Extractor9:24Middle 50%: 8:46–10:21 · n=1993

Played most by

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