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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

Cortex Geo sea build order · Supreme Isthmus

The role's default economy-first opening: bot lab then shipyard in the cove, early frigate and destroyer with a sub, taking geo on time before transitioning into a mixed navy for the rest of the game.

Usually shipyard in the cove (98%)

#naval #eco · 1767 distinct matches · 190 players · 80% of Cortex Geo sea games · team won 53% of 2066 · 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 1767 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 ~1:13, middle half 1:07–1:25

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 4 steps
    1. Mex ×3
    2. Wind ×5
    3. Energy storage
    4. Bot LabBot Labdone 1:29 · typical 1:13
  2. 2

    Bot Lab to Shipyard

    Economy
    • Metal Extractor1Mex
    • Wind Turbine1Wind
    Order
    1. ShipyardShipyard after 4 mex, 5 wind, 1 energy storagedone ~3:18, middle half 3:02–3:36
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (46%) · trasher (39%) · energy storage (36%)

    By 2:52 in all: 4 mex · 5 wind · 1 energy storage

    The example game in this phase · 7 steps
    1. GraverobberGraverobber
    2. Construction BotCon bot
    3. GraverobberGraverobber
    4. Construction BotCon bot ×2
    5. GraverobberGraverobber
    6. Mex
    7. ShipyardShipyarddone 3:04 · typical 3:18
  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%) · wind (49%) · Guard (48%) · destroyer (44%) · gunboat (39%)

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

    The example game in this phase · 16 steps
    1. GruntGrunt ×4
    2. HerringMissile corvette
    3. SupporterGunboat
    4. TrasherTrasher
    5. SupporterGunboat ×2
    6. GruntGrunt
    7. HerringMissile corvette
    8. Mex
    9. Construction ShipCon ship
    10. Bot LabEat Bot Labreclaimed for its metal
    11. SupporterGunboat ×4
    12. HerringMissile corvette
    13. Mex
    14. SupporterGunboat ×4
    15. HerringMissile corvette
    16. 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 53% 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 (39%) · submarine (32%)

    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 · 121 steps
    1. Con turret
    2. Mex
    3. Radar TowerRadar Tower
    4. ShipyardEat Shipyardreclaimed for its metal
    5. JellyfishJellyfish
    6. Geothermal PowerplantGeodone 7:28 · typical 8:13
    7. ShipyardShipyarddone 5:58
    8. OppressorDestroyerdone 6:43 · typical 5:54
    9. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    10. Wind
    11. Construction ShipCon ship
    12. Wind ×2
    13. ShipyardShipyarddone 7:28
    14. Wind
    15. Converter
    16. Wind
    17. Construction ShipCon ship
    18. Wind
    19. RiptideFrigatenot finished by 15:00 · typical 4:40
    20. OrcaSubmarinedone 8:28 · typical 4:17
    21. Converter
    22. Con turret
    23. Advanced Metal ExtractorT2 mexdone 9:21
    24. Converter
    25. Mex
    26. Converter
    27. OrcaSubmarine
    28. Wind
    29. Construction ShipCon ship
    30. Wind ×2
    31. Advanced Metal ExtractorT2 mex
    32. HerringMissile corvette
    33. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    34. Wind
    35. SupporterGunboat
    36. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    37. SupporterGunboat ×2
    38. Wind
    39. SupporterGunboat
    40. Wind
    41. Mex
    42. SupporterGunboat
    43. Construction ShipCon ship
    44. Con turret
    45. Mex
    46. HerringMissile corvette
    47. Wind
    48. Advanced Metal ExtractorT2 mex
    49. Mex
    50. Death CavalryDeath Cavalry
    51. Wind
    52. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    53. SupporterGunboat ×2
    54. Wind
    55. SupporterGunboat
    56. Wind
    57. SupporterGunboat
    58. Advanced ShipyardAdvanced Shipyarddone 11:41
    59. Wind
    60. SupporterGunboat
    61. Mex
    62. Wind
    63. Advanced Metal ExtractorT2 mex
    64. Con turret
    65. Advanced Construction SubAdvanced Construction Sub
    66. Wind
    67. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    68. PathfinderPathfinder
    69. Wind
    70. PathfinderPathfinder
    71. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 12:35
    72. Wind
    73. Mex
    74. PathfinderPathfinder
    75. Wind
    76. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    77. Con turret
    78. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    79. Advanced Metal ExtractorT2 mex
    80. Advanced ShipyardEat Advanced Shipyardreclaimed for its metal
    81. Seaplane PlatformSeaplane Platformdone 13:12
    82. Con turret
    83. Wind
    84. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    85. Naval Construction Turret
    86. MonsoonTorpedo gunship
    87. Wind
    88. Naval Construction Turret
    89. Wind
    90. Construction ShipCon ship
    91. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    92. Wind
    93. Naval Construction Turret
    94. Wind
    95. Advanced Metal ExtractorT2 mex
    96. Tidal
    97. Seaplane PlatformEat Seaplane Platformreclaimed for its metal
    98. Naval Construction Turret
    99. Tidal
    100. Wind
    101. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    102. Tidal
    103. Wind
    104. Tidal
    105. Wind ×2
    106. Tidal
    107. Wind
    108. Tidal
    109. Wind
    110. Advanced ShipyardAdvanced Shipyarddone 14:36
    111. Wind
    112. BuccaneerCruiserdone 14:46
    113. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    114. Wind
    115. Tidal
    116. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    117. BuccaneerCruiser
    118. Tidal
    119. Con turret
    120. Wind
    121. Seaplane PlatformSeaplane Platformnot finished by 15:00

Counts are medians over the build's games: half of them build more, half fewer. The example game is NihilisticDuck73's (35 OS, 13/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:44 · in 72% of games

You get

  • Finch1 Finch from Airfirst at 1:52 · in 82% 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

2066 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039800
2:0092900
3:00155700
4:002865051
5:00406614652
6:005414440232
7:006890905543
8:0085731547908
9:001040824581353
10:001253035282022
11:001507247082804
12:001801760503661
13:002121672254375
14:002477884365224
15:002858596396201
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

NihilisticDuck73

35.5 OS · 13/10/2026

Open source match ↗

4 received units · includes a constructor
92 metal received · 41705 energy received

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

Typical milestones

Bot Lab1:13Middle 50%: 1:07–1:25 · n=2039
Shipyard3:18Middle 50%: 3:02–3:36 · n=2057
Orca4:17Middle 50%: 3:52–5:00 · n=1397
Riptide4:40Middle 50%: 4:09–5:22 · n=2013
Oppressor5:54Middle 50%: 5:11–6:40 · n=1890
Geothermal Powerplant8:13Middle 50%: 7:13–9:26 · n=1343
Advanced Metal Extractor9:25Middle 50%: 8:48–10:21 · n=1801

Played most by

SHOGVN221games of this buildsirniho126games of this buildElpoloow118games of this buildOptimusprimenutt95games of this buildhihimik72games of this build