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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 · 1101 distinct matches · 105 players · 83% of Cortex Geo sea games · team won 52% of 1231 · 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 1101 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 1:12 · 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 · 6 steps
    1. Wind
    2. Construction BotCon bot ×3
    3. GraverobberGraverobber ×3
    4. Mex
    5. Con turret
    6. ShipyardShipyarddone 3:03 · 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 (50%) · 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 · 15 steps
    1. Bot LabEat Bot Labreclaimed for its metal
    2. SupporterGunboat ×2
    3. Mex
    4. Construction ShipCon ship
    5. Mex
    6. HerringMissile corvette
    7. RiptideFrigate ×2done 3:55 · typical 4:37
    8. Mex ×2
    9. RiptideFrigate
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. Death CavalryDeath Cavalry
    12. Mex
    13. Radar TowerRadar Tower
    14. Energy storage
    15. OppressorDestroyerdone 5:40 · typical 5:52
  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 · 67 steps
    1. GuardGuard ×2
    2. HerringMissile corvette
    3. GuardGuard
    4. RiptideFrigate ×3
    5. Death CavalryDeath Cavalry
    6. GuardGuard
    7. UrchinUrchin
    8. OppressorDestroyer
    9. BeholderBeholder
    10. Geothermal PowerplantGeodone 8:50 · typical 8:00
    11. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    12. Advanced Metal ExtractorT2 mexdone 8:21 · typical 9:22
    13. BeholderBeholder
    14. HerringMissile corvette
    15. RiptideFrigate
    16. Advanced Metal ExtractorT2 mex
    17. OrcaSubmarinedone 8:49 · typical 4:17
    18. GuardGuard
    19. OrcaSubmarine
    20. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    21. OrcaSubmarine
    22. Advanced Metal ExtractorT2 mex
    23. Mex
    24. OrcaSubmarine ×2
    25. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    26. RiptideFrigate
    27. Advanced Metal ExtractorT2 mex
    28. Death CavalryDeath Cavalry
    29. RiptideFrigate
    30. Death CavalryDeath Cavalry
    31. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    32. OppressorDestroyer
    33. Mex
    34. Con turret
    35. Advanced Metal ExtractorT2 mex
    36. Death CavalryDeath Cavalry
    37. Con turret
    38. Death CavalryDeath Cavalry
    39. Con turret
    40. Naval Metal Storage
    41. Con turret
    42. Construction ShipCon ship
    43. Naval Metal Storage
    44. Advanced Metal ExtractorT2 mex
    45. Construction ShipCon ship
    46. Wind
    47. Construction ShipCon ship
    48. Wind
    49. Construction ShipCon ship
    50. Wind
    51. Construction ShipCon ship
    52. Wind
    53. Mex
    54. Wind
    55. Death CavalryDeath Cavalry
    56. Wind ×2
    57. Advanced ShipyardAdvanced Shipyarddone 14:22
    58. Wind
    59. Mex
    60. Wind ×6
    61. Advanced Construction SubAdvanced Construction Sub
    62. Wind
    63. Naval Construction Turret
    64. Mex
    65. Naval Construction Turret
    66. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    67. PathfinderPathfinder

Counts are medians over the build's games: half of them build more, half fewer. The example game is DRM's (42 OS, 09/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:48 · in 69% 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

1231 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
6:005454465231
7:006936931545
8:0086071586891
9:001047524951344
10:001263736252026
11:001520048242823
12:001811162243694
13:002141373644421
14:002501686615334
15:002887297726351
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

DRM

42.0 OS · 09/10/2026

Open source match ↗

3 received units · includes a constructor
1741 metal received · 41157 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=1210
Shipyard3:17Middle 50%: 3:02–3:33 · n=1223
Orca4:17Middle 50%: 3:51–4:59 · n=848
Riptide4:37Middle 50%: 4:08–5:21 · n=1196
Oppressor5:52Middle 50%: 5:08–6:36 · n=1118
Geothermal Powerplant8:00Middle 50%: 7:02–9:04 · n=732
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=1064

Played most by

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