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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 · 4 steps
    1. Mex ×3
    2. Wind ×2
    3. Mex
    4. Bot LabBot Labdone 1:32 · 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 · 11 steps
    1. GraverobberGraverobber
    2. Wind
    3. GraverobberGraverobber
    4. Wind
    5. Construction BotCon bot ×4
    6. Energy storage
    7. Construction BotCon bot
    8. Mex
    9. Radar TowerRadar Tower
    10. GruntGrunt
    11. ShipyardShipyarddone 3:53 · 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. GruntGrunt
    2. GuardGuard
    3. GruntGrunt
    4. Mex
    5. SupporterGunboat ×4
    6. Wind
    7. Construction ShipCon ship
    8. Con turret
    9. Wind
    10. Mex
    11. OrcaSubmarinedone 4:58 · typical 4:19
    12. Wind
    13. Mex
    14. Wind ×2
    15. Radar TowerRadar Tower
    16. Wind
  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 · 153 steps
    1. RiptideFrigatenot finished by 15:00 · typical 4:35
    2. Wind
    3. SupporterGunboat
    4. Wind ×2
    5. GuardGuard
    6. Wind
    7. SupporterGunboat
    8. Wind
    9. SupporterGunboat
    10. GuardGuard
    11. Wind
    12. SupporterGunboat
    13. Wind ×2
    14. SupporterGunboat
    15. GuardGuard
    16. Mex
    17. Wind
    18. SupporterGunboat
    19. Wind
    20. SupporterGunboat
    21. Geothermal PowerplantGeodone 8:32 · typical 8:00
    22. SupporterGunboat
    23. Mex
    24. SupporterGunboat
    25. Wind
    26. SupporterGunboat
    27. Wind
    28. SupporterGunboat ×2
    29. Wind
    30. SupporterGunboat
    31. Wind
    32. SupporterGunboat
    33. Wind
    34. SupporterGunboat
    35. Wind
    36. SupporterGunboat
    37. Mex
    38. Wind ×2
    39. SupporterGunboat
    40. Wind
    41. SupporterGunboat
    42. HerringMissile corvette
    43. Converter
    44. HerringMissile corvette
    45. Converter
    46. Radar TowerRadar Tower
    47. HerringMissile corvette ×2
    48. Converter
    49. Mex
    50. HerringMissile corvette
    51. Converter
    52. SupporterGunboat
    53. Death CavalryDeath Cavalry
    54. Converter
    55. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    56. Construction ShipCon ship
    57. Converter
    58. Mex
    59. Con turret
    60. Advanced Bot LabAdvanced Bot Labdone 10:20
    61. Mex ×3
    62. Con turret
    63. Wind ×7
    64. Advanced Construction BotT2 con bot
    65. Wind ×2
    66. Converter
    67. Wind
    68. TwitcherTwitcher
    69. Wind ×2
    70. Converter
    71. Con turret
    72. TwitcherTwitcher
    73. Wind
    74. Mex
    75. Converter
    76. Advanced Metal ExtractorT2 mexdone 12:30
    77. TwitcherTwitcher
    78. Wind ×2
    79. Converter
    80. Wind
    81. Converter
    82. FiendFiend
    83. Wind
    84. Con turret
    85. CommandoCommando
    86. Wind
    87. Converter
    88. Wind
    89. Advanced Metal ExtractorT2 mex
    90. Converter
    91. Wind
    92. TwitcherTwitcher
    93. Con turret ×2
    94. Wind ×2
    95. FiendFiend
    96. Wind
    97. TwitcherTwitcher
    98. Tidal
    99. Wind
    100. Tidal
    101. Con turret
    102. Wind
    103. TwitcherTwitcher
    104. Tidal
    105. Wind
    106. Tidal
    107. Converter
    108. HerculesLight transport
    109. Tidal
    110. Advanced Construction BotT2 con bot
    111. Twin GuardTwin Guard
    112. HerculesLight transport
    113. Advanced Metal ExtractorT2 mex
    114. Tidal
    115. Converter
    116. Tidal
    117. Converter
    118. HerculesLight transport
    119. Tidal
    120. HerculesLight transport
    121. Converter
    122. TwitcherTwitcher
    123. Tidal
    124. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 14:10
    125. Converter
    126. Tidal
    127. Twin GuardTwin Guard
    128. Converter
    129. Metal storage
    130. Tidal ×2
    131. Con turret
    132. Twin GuardTwin Guard
    133. Tidal ×2
    134. Advanced Metal ExtractorT2 mex
    135. Tidal
    136. Construction BotCon bot
    137. Con turret
    138. Naval Construction Turret
    139. Construction BotCon bot ×2
    140. Tidal
    141. Advanced Metal ExtractorT2 mex
    142. Construction BotCon bot
    143. Con turret
    144. CastroCastro
    145. ShroudShroud
    146. Con turret
    147. Tidal
    148. Con turret
    149. Converter ×2
    150. Naval Construction Turret
    151. Converter
    152. PersecutorPersecutornot finished by 15:00
    153. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is JelousOfMyEco's (36 OS, 14/09/2026); 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

JelousOfMyEco

36.3 OS · 14/09/2026

Open source match ↗

1 received units
8 metal received · 522 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