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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 · 3 steps
    1. Mex ×3
    2. Wind ×4
    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 3:03–3:33
    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 · 10 steps
    1. Energy storage
    2. Bot LabBot Labdone 1:27
    3. Construction BotCon bot ×3
    4. GraverobberGraverobber
    5. Mex
    6. Construction BotCon bot
    7. GraverobberGraverobber
    8. Mex
    9. GraverobberGraverobber
    10. ShipyardShipyarddone 3:19 · 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 · 15 steps
    1. Mex ×2
    2. Construction ShipCon ship
    3. Radar TowerRadar Tower
    4. Construction ShipCon ship
    5. Mex ×2
    6. GuardGuard
    7. OrcaSubmarinedone 4:14 · typical 4:19
    8. Mex
    9. GuardGuard
    10. Radar TowerRadar Tower
    11. OrcaSubmarine
    12. Con turret
    13. GuardGuard
    14. HerringMissile corvette ×2
    15. GuardGuard
  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 · 149 steps
    1. RiptideFrigatedone 5:16 · typical 4:35
    2. Wind
    3. OppressorDestroyerdone 6:14 · typical 5:51
    4. Wind
    5. GuardGuard
    6. Geothermal PowerplantGeodone 6:49 · typical 8:00
    7. Wind ×3
    8. RiptideFrigate
    9. Wind ×3
    10. Advanced Metal ExtractorT2 mexdone 8:00 · typical 9:22
    11. Wind
    12. Death CavalryDeath Cavalry
    13. Wind
    14. GuardGuard
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. Wind
    17. Radar TowerRadar Tower
    18. Wind
    19. Death CavalryDeath Cavalry
    20. Wind ×3
    21. Construction ShipCon ship
    22. Wind
    23. Converter
    24. Advanced Metal ExtractorT2 mex
    25. OrcaSubmarine
    26. Converter
    27. Wind
    28. OrcaSubmarine
    29. Converter
    30. Wind
    31. Naval Construction Turret
    32. DolphinDolphin
    33. Wind
    34. Advanced Metal ExtractorT2 mex
    35. HerringMissile corvette
    36. Converter
    37. SlingshotSlingshot
    38. HerringMissile corvette
    39. UrchinUrchin
    40. DolphinDolphin
    41. RiptideFrigate
    42. Converter
    43. Wind
    44. OrcaSubmarine
    45. HerringMissile corvette
    46. DolphinDolphin
    47. Naval Construction Turret
    48. OppressorDestroyer
    49. DolphinDolphin
    50. Converter
    51. Wind
    52. DolphinDolphin
    53. SkaterSkater ×2
    54. Wind
    55. OppressorDestroyer
    56. Mex
    57. Converter
    58. Naval Construction Turret
    59. Advanced Metal ExtractorT2 mex
    60. Mex
    61. SkaterSkater
    62. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    63. Wind
    64. Naval Construction Turret
    65. HerringMissile corvette
    66. Converter
    67. Construction ShipCon ship ×2
    68. Naval Construction Turret
    69. Construction ShipCon ship
    70. Wind
    71. Naval Construction Turret
    72. Construction ShipCon ship
    73. Con turret
    74. Naval Construction Turret ×4
    75. Construction ShipCon ship
    76. Construction ShipCon ship
    77. Con turret
    78. Naval Construction Turret ×2
    79. Advanced Metal ExtractorT2 mex
    80. Naval Construction Turret
    81. Construction ShipCon ship
    82. Tidal
    83. Naval Construction Turret ×2
    84. Con turret
    85. Naval Construction Turret
    86. Advanced Metal ExtractorT2 mex
    87. Tidal ×5
    88. Wind
    89. Construction ShipCon ship
    90. Tidal ×4
    91. Wind
    92. Naval Energy Storage
    93. Tidal ×4
    94. Wind
    95. Tidal ×4
    96. Wind
    97. Tidal
    98. Construction ShipCon ship
    99. Tidal ×2
    100. Advanced ShipyardAdvanced Shipyarddone 13:31
    101. Wind
    102. Tidal ×4
    103. Wind
    104. Tidal ×6
    105. Wind
    106. Tidal ×5
    107. Mex
    108. Tidal
    109. Wind
    110. Tidal ×4
    111. Wind
    112. Tidal ×8
    113. Wind
    114. Advanced Construction SubAdvanced Construction Sub
    115. Tidal
    116. Wind
    117. Tidal ×2
    118. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    119. Tidal ×7
    120. HarpoonHarpoon
    121. Tidal ×2
    122. Wind
    123. PathfinderPathfinder
    124. Tidal
    125. Wind
    126. Tidal
    127. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:31
    128. Tidal ×2
    129. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    130. Tidal ×2
    131. Wind
    132. HarpoonHarpoon
    133. PathfinderPathfinder
    134. Tidal ×3
    135. Wind
    136. HarpoonHarpoon
    137. Tidal ×2
    138. Wind
    139. PathfinderPathfinder
    140. Tidal
    141. Wind
    142. Naval Construction Turret
    143. PathfinderPathfinder
    144. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    145. Naval Energy Converter ×4
    146. Tidal ×2
    147. Naval Construction Turret
    148. HarpoonHarpoon
    149. Naval Construction Turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is Viltrum's (41 OS, 12/09/2026); 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

Viltrum

41.3 OS · 12/09/2026

Open source match ↗

11 received units · includes a constructor
177 metal received · 100956 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