← All builds
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 · 963 distinct matches · 100 players · 83% of Cortex Geo sea games · team won 52% of 1080 · 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 963 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 1:06–1:25

    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 3:02–3:33
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (46%) · trasher (39%) · energy storage (34%) · wind for allies (32%)

    By 2:51 in all: 4 mex · 5 wind · 1 energy storage

    The example game in this phase · 10 steps
    1. Construction BotCon bot
    2. Wind
    3. Solar
    4. Wind ×3
    5. Construction BotCon bot ×2
    6. Energy storage
    7. GraverobberGraverobber
    8. Mex
    9. GraverobberGraverobber
    10. ShipyardShipyarddone 3:12 · 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 (49%) · wind (49%) · missile corvette (48%) · 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 · 26 steps
    1. Wind ×2for Air
    2. GruntGrunt
    3. Construction ShipCon ship
    4. Wind
    5. GruntGrunt
    6. Mex
    7. Wind
    8. Mex
    9. Wind
    10. SupporterGunboat
    11. Wind
    12. SupporterGunboat ×2
    13. Mex
    14. SupporterGunboat
    15. Mex
    16. SupporterGunboat
    17. Converter
    18. SupporterGunboat
    19. Death CavalryDeath Cavalry
    20. Radar TowerRadar Tower
    21. Mex
    22. Construction ShipCon ship
    23. GuardGuard
    24. OrcaSubmarinedone 4:59 · typical 4:19
    25. Converter
    26. Mex
  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 (48%) · Thistle (41%) · 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 · 92 steps
    1. OrcaSubmarine
    2. GuardGuard
    3. Radar TowerRadar Tower
    4. RiptideFrigatedone 5:44 · typical 4:36
    5. GuardGuard
    6. RiptideFrigate
    7. GuardGuard
    8. Mex
    9. ThistleThistle
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. RiptideFrigate
    12. Con turret
    13. ThistleThistle
    14. GuardGuard
    15. HerringMissile corvette
    16. Death CavalryDeath Cavalry
    17. GuardGuard
    18. Con turret
    19. HerringMissile corvette
    20. RiptideFrigate
    21. Geothermal PowerplantGeodone 8:44 · typical 7:59
    22. RiptideFrigate
    23. GuardGuard
    24. RiptideFrigate ×2
    25. Death CavalryDeath Cavalry
    26. GuardGuard
    27. Wind ×2
    28. RiptideFrigate
    29. Wind ×3
    30. OrcaSubmarine
    31. GuardGuard ×2
    32. Wind ×2
    33. GuardGuard
    34. Wind ×2
    35. OrcaSubmarine
    36. ThistleThistle
    37. GuardGuard
    38. Wind
    39. ThistleThistle
    40. Wind
    41. Advanced Metal ExtractorT2 mexdone 10:55 · typical 9:22
    42. Wind
    43. Converter
    44. Wind
    45. Construction ShipCon ship
    46. Converter
    47. Wind
    48. Converter
    49. Wind
    50. HerringMissile corvette
    51. Wind
    52. GuardGuard
    53. Converter
    54. HerringMissile corvette
    55. Wind
    56. OrcaSubmarine
    57. Wind
    58. Converter
    59. Death CavalryDeath Cavalry
    60. Converter
    61. Wind ×2
    62. OrcaSubmarine
    63. Advanced Metal ExtractorT2 mex
    64. GuardGuard
    65. RiptideFrigate
    66. GuardGuard
    67. RiptideFrigate
    68. ThistleThistle
    69. RiptideFrigate
    70. Con turret
    71. RiptideFrigate
    72. SupporterGunboat
    73. Advanced Metal ExtractorT2 mex
    74. SupporterGunboat
    75. HerringMissile corvette ×2
    76. Wind
    77. HerringMissile corvette
    78. EradicatorEradicator
    79. Naval Construction Turret
    80. HerringMissile corvette ×4
    81. Advanced Metal ExtractorT2 mex
    82. HerringMissile corvette ×3
    83. ThistleThistle ×2
    84. Naval Construction Turret
    85. ThistleThistle
    86. Advanced Metal ExtractorT2 mex
    87. CastroCastro
    88. Naval Construction Turret
    89. Energy storage
    90. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    91. Energy storage
    92. Advanced Metal ExtractorT2 mex ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is PRO_Rerory's (50 OS, 18/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:48 · in 72% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 83% 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

1080 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156700
4:002903051
5:00410813152
6:005464441242
7:006946931551
8:0086181570905
9:001049724631363
10:001261536342072
11:001522148872938
12:001812964053801
13:002147974014458
14:002507986465388
15:002882297766321
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

49.7 OS · 18/09/2026

Open source match ↗

4 received units · includes a constructor
1 metal received · 156 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:06–1:25 · n=1069
Shipyard3:17Middle 50%: 3:02–3:33 · n=1074
Orca4:19Middle 50%: 3:54–5:00 · n=747
Riptide4:36Middle 50%: 4:08–5:21 · n=1048
Oppressor5:52Middle 50%: 5:09–6:34 · n=977
Geothermal Powerplant7:59Middle 50%: 7:01–8:59 · n=648
Advanced Metal Extractor9:22Middle 50%: 8:46–10:10 · n=926

Played most by

sirniho121games of this buildSHOGVN86games of this buildOptimusprimenutt84games of this buildPRO_Rerory47games of this buildhihimik41games of this build