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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 · 1097 distinct matches · 104 players · 83% of Cortex Geo sea games · team won 52% of 1226 · 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 1097 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 ×2
    3. Bot LabBot Labnot finished by 15:00 · 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 · 11 steps
    1. Wind ×2
    2. Solar
    3. Bot LabBot Labdone 1:21
    4. Wind
    5. GraverobberGraverobber ×2
    6. TrasherTrasher ×2
    7. GraverobberGraverobber ×2
    8. Construction BotCon bot ×2
    9. Con turret
    10. Construction BotCon bot
    11. ShipyardShipyarddone 3:42 · 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 (49%) · 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 · 21 steps
    1. Energy storage
    2. Construction BotCon bot
    3. Mex
    4. Converter ×2
    5. Mex
    6. Converter
    7. OrcaSubmarinedone 4:04 · typical 4:17
    8. Bot LabEat Bot Labreclaimed for its metal
    9. Converter
    10. Mex
    11. Radar TowerRadar Tower
    12. Construction ShipCon ship
    13. GuardGuard
    14. Wind
    15. RiptideFrigatedone 4:51 · typical 4:37
    16. Wind
    17. GuardGuard
    18. Mex
    19. Wind ×4
    20. Mex
    21. RiptideFrigate
  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 · 83 steps
    1. Wind ×2
    2. UrchinUrchin
    3. Wind
    4. RiptideFrigate
    5. Wind ×3
    6. OppressorDestroyerdone 6:31 · typical 5:52
    7. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    8. HerringMissile corvette
    9. Death CavalryDeath Cavalry
    10. Geothermal PowerplantGeodone 7:38 · typical 8:00
    11. OrcaSubmarine
    12. Construction ShipCon ship
    13. RiptideFrigate
    14. Converter
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. Radar TowerRadar Tower
    17. RiptideFrigate
    18. Advanced Metal ExtractorT2 mexdone 9:13 · typical 9:22
    19. Converter
    20. GuardGuard
    21. Converter
    22. RiptideFrigate
    23. Converter
    24. Con turret
    25. OppressorDestroyer
    26. Converter ×2
    27. Tidal
    28. HerringMissile corvette
    29. Death CavalryDeath Cavalry
    30. Tidal
    31. Advanced Metal ExtractorT2 mex
    32. OrcaSubmarine
    33. Tidal
    34. Construction ShipCon ship
    35. Tidal
    36. RiptideFrigate
    37. Tidal
    38. RiptideFrigate
    39. Tidal
    40. RiptideFrigate
    41. Tidal
    42. OppressorDestroyer
    43. Tidal ×2
    44. HerringMissile corvette
    45. Mex
    46. Death CavalryDeath Cavalry
    47. OrcaSubmarine
    48. Construction ShipCon ship
    49. RiptideFrigate ×2
    50. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 12:42
    51. RiptideFrigate
    52. OppressorDestroyer
    53. Con turret
    54. HerringMissile corvette
    55. Death CavalryDeath Cavalry
    56. OrcaSubmarine
    57. Naval Construction Turret
    58. Construction ShipCon ship
    59. Tidal
    60. Mex
    61. RiptideFrigate
    62. Tidal ×2
    63. RiptideFrigate
    64. Tidal
    65. RiptideFrigate
    66. Tidal
    67. OppressorDestroyer
    68. Tidal
    69. HerringMissile corvette
    70. Death CavalryDeath Cavalry
    71. OrcaSubmarine
    72. Construction ShipCon ship
    73. RiptideFrigate ×2
    74. T2 converter
    75. RiptideFrigate
    76. OppressorDestroyer
    77. HerringMissile corvette
    78. Death CavalryDeath Cavalry
    79. HerringMissile corvette ×2
    80. OrcaSubmarine
    81. Construction ShipCon ship
    82. Con turret
    83. RiptideFrigate ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is Zus's (35 OS, 08/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:48 · in 70% 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

1226 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156600
4:002894051
5:00410314952
6:005454461231
7:006936931545
8:0086071576891
9:001046824981344
10:001262936252029
11:001519848462834
12:001810062253711
13:002140673614431
14:002501686465348
15:002886797676353
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

Zus

35.1 OS · 08/10/2026

Open source match ↗

7 received units · includes a constructor
130 metal received · 35786 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=1206
Shipyard3:17Middle 50%: 3:02–3:33 · n=1218
Orca4:17Middle 50%: 3:51–4:59 · n=844
Riptide4:37Middle 50%: 4:08–5:21 · n=1191
Oppressor5:52Middle 50%: 5:08–6:36 · n=1113
Geothermal Powerplant8:00Middle 50%: 7:01–9:03 · n=729
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=1059

Played most by

sirniho125games of this buildSHOGVN100games of this buildOptimusprimenutt86games of this buildPRO_Rerory52games of this buildTheSituation43games of this build
Standard geo sea · Cortex Geo sea build order · BAR Build Atlas