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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

The role's default economy-first play: bot lab then shipyard in the cove, quick frigate/submarine/destroyer navy to contest sea and hold the coast, transitioning into whatever the sea fight needs.

Usually shipyard in the cove (98%)

#naval #eco · 897 distinct matches · 97 players · 83% of Cortex Geo sea games · team won 52% of 1005 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 3:18

  1. Open 3 mex, wind and solar, then Bot Lab.
  2. Get a BP and costal torpedo launcher up before the Shipyard.
  3. Put up Shipyard once you can defend it.
  4. Push out "submarine" and "frigate" to contest the sea.
  5. Add geothermal to fund the fleet transition into "destroyer", "missile corvette".

Phase by phase

TYPICAL OF ITS 897 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 1:06–1:26

    Some games also: wind for allies (49%)

    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 ×3
    5. Bot LabBot Labdone 1:11 · 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 3:03–3:33
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (47%) · trasher (39%) · energy storage (34%) · wind for allies (33%)

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

    The example game in this phase · 14 steps
    1. Wind
    2. Construction BotCon bot
    3. Wind
    4. Construction BotCon bot
    5. Wind ×3
    6. Construction BotCon bot
    7. GraverobberGraverobber
    8. Energy storage
    9. GraverobberGraverobber
    10. GruntGrunt
    11. Mex
    12. GruntGrunt
    13. Mex
    14. ShipyardShipyarddone 3:02 · typical 3:17
  3. 3

    Shipyard to 5:00

    Economy
    • Metal Extractor4Mex
    Builders
    • Construction Ship1 Con ship
    Army
    • Riptide2 Frigate
    • Orca1 Submarine
    Other
    • Radar Tower1 Radar Tower

    Some games also: Guard (50%) · wind (48%) · missile corvette (47%) · destroyer (46%) · gunboat (41%)

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

    The example game in this phase · 16 steps
    1. Construction ShipCon ship
    2. SupporterGunboat
    3. Mex
    4. SupporterGunboat
    5. Mex
    6. SupporterGunboat
    7. OrcaSubmarinedone 3:44 · typical 4:19
    8. Radar TowerRadar Tower
    9. GuardGuard
    10. Construction ShipCon ship
    11. Mex
    12. OrcaSubmarine
    13. GuardGuard
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. ThistleThistle
    16. OrcaSubmarine
  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
    • Herring2 Missile corvette
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: geo (48%) · Thistle (42%) · submarine (33%)

    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 · 87 steps
    1. Death CavalryDeath Cavalry
    2. Geothermal PowerplantGeodone 6:34 · typical 8:00
    3. HerringMissile corvette
    4. RiptideFrigatedone 6:14 · typical 4:35
    5. Mex
    6. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    7. RiptideFrigate
    8. Advanced Metal ExtractorT2 mexdone 8:02 · typical 9:22
    9. GuardGuard
    10. RiptideFrigate
    11. GuardGuard
    12. RiptideFrigate
    13. OppressorDestroyerdone 8:09 · typical 5:51
    14. Advanced Metal ExtractorT2 mex
    15. HerringMissile corvette
    16. RiptideFrigate
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    18. RiptideFrigate ×2
    19. Advanced Metal ExtractorT2 mex
    20. Naval Construction Turret
    21. RiptideFrigate
    22. Death CavalryDeath Cavalry
    23. Advanced Metal ExtractorT2 mex
    24. GuardGuard
    25. Construction ShipCon ship
    26. GuardGuard
    27. OppressorDestroyer
    28. GuardGuard
    29. Radar TowerRadar Tower
    30. GuardGuard
    31. HerringMissile corvette
    32. RiptideFrigate
    33. OppressorDestroyer
    34. GuardGuard
    35. RiptideFrigate
    36. Death CavalryDeath Cavalry
    37. Construction ShipCon ship
    38. HerringMissile corvette
    39. SupporterGunboat ×3
    40. Mex
    41. GuardGuard
    42. SupporterGunboat ×2
    43. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    44. SupporterGunboat ×3
    45. GuardGuard
    46. SupporterGunboat ×3
    47. HerringMissile corvette ×2
    48. Naval Construction Turret ×2
    49. GuardGuard
    50. HerringMissile corvette
    51. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 13:42
    52. HerringMissile corvette
    53. Twin GuardTwin Guard
    54. HerringMissile corvette ×6
    55. Radar TowerRadar Tower
    56. Mex
    57. HerringMissile corvette
    58. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    59. HerringMissile corvette ×4
    60. Tidal
    61. Mex
    62. HerringMissile corvette
    63. Tidal
    64. HerringMissile corvette
    65. Tidal
    66. Mex ×2
    67. HerringMissile corvette
    68. Tidal
    69. Radar TowerRadar Tower
    70. Tidal
    71. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    72. HerringMissile corvette
    73. Tidal
    74. HerringMissile corvette
    75. Tidal
    76. HerringMissile corvette
    77. GuardGuard
    78. Tidal
    79. HerringMissile corvette
    80. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    81. SupporterGunboat ×2
    82. GuardGuard
    83. SupporterGunboat ×2
    84. Advanced Metal ExtractorT2 mex
    85. SupporterGunboat ×2
    86. GuardGuard
    87. SupporterGunboat ×3

Counts are medians over the build's games: half of them build more, half fewer. The example game is PRO_Rerory's (49 OS, 15/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:47 · in 73% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 82% of games
  • Hercules1 Light transport from Airfirst at 2:00 · in 75% 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

1005 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00157100
4:002914051
5:00411013052
6:005467440232
7:006953931547
8:0086241570891
9:001051024401344
10:001264436272050
11:001523749202921
12:001815364203827
13:002150674134511
14:002505786485441
15:002879297896342
WHAT THE NUMBERS SAY

Standard Cortex geo sea sits at an even 50% win rate, trading a slower start for a big resource lead by 15:00.

  • + Metal produced hits 28451 by 15:00, well above both front roles
  • + Own metal lost stays far below enemy metal destroyed at every checkpoint
  • − Only 50% team win rate, the lowest of these six builds
  • − T2 factory only completes in 40% of games by 12:53
THE EXAMPLE YOU ARE READING

PRO_Rerory

49.1 OS · 15/09/2026

Open source match ↗

8 received units · includes a constructor
39 metal received · 41072 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:06–1:26 · n=999
Shipyard3:17Middle 50%: 3:03–3:33 · n=1000
Orca4:19Middle 50%: 3:53–4:59 · n=686
Riptide4:35Middle 50%: 4:08–5:20 · n=977
Oppressor5:51Middle 50%: 5:08–6:32 · n=912
Geothermal Powerplant8:00Middle 50%: 7:01–8:58 · n=605
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=861

Played most by

sirniho119games of this buildOptimusprimenutt78games of this buildSHOGVN74games of this buildPRO_Rerory46games of this buildhihimik41games of this build