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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. Wind ×2for Air
    4. Bot LabBot Labdone 1:14 · 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. GraverobberGraverobber ×3
    2. Wind ×2
    3. Construction BotCon bot
    4. TrasherTrasher
    5. Con turret
    6. GruntGrunt ×2
    7. Construction BotCon bot ×2
    8. Energy storage
    9. Mex ×2
    10. Radar TowerRadar Tower ×2
    11. JellyfishJellyfish
    12. Mex
    13. GuardGuard
    14. ShipyardShipyarddone 4:12 · 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 (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 · 9 steps
    1. GuardGuard ×3
    2. Construction ShipCon ship
    3. Radar TowerRadar Tower
    4. Converter
    5. OppressorDestroyerdone 5:11 · typical 5:51
    6. Geothermal PowerplantGeodone 6:17 · typical 8:00
    7. Mex
    8. Converter ×3
    9. 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
    • 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. Wind
    2. HerringMissile corvette
    3. Wind ×2
    4. RiptideFrigatedone 6:04 · typical 4:35
    5. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    6. Wind ×5
    7. RiptideFrigate
    8. UrchinUrchin
    9. Converter
    10. Death CavalryDeath Cavalry
    11. Converter ×2
    12. RiptideFrigate
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. Converter ×2
    15. Mex
    16. Converter
    17. RiptideFrigate
    18. Converter ×3
    19. HerringMissile corvette ×2
    20. Converter
    21. HerringMissile corvette
    22. Death CavalryDeath Cavalry
    23. Advanced Metal ExtractorT2 mexdone 8:42 · typical 9:22
    24. Converter
    25. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    26. OppressorDestroyer
    27. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    28. Advanced Metal ExtractorT2 mex
    29. OppressorDestroyer
    30. Advanced Metal ExtractorT2 mex
    31. Mex
    32. GuardGuard
    33. UrchinUrchin
    34. RiptideFrigate
    35. GuardGuard ×2
    36. Advanced Metal ExtractorT2 mex
    37. Con turret
    38. RiptideFrigate
    39. Con turret
    40. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    41. Construction ShipCon ship
    42. Death CavalryDeath Cavalry
    43. Naval Construction Turret
    44. Advanced Metal ExtractorT2 mex
    45. Naval Construction Turret ×2
    46. Death CavalryDeath Cavalry
    47. Advanced ShipyardAdvanced Shipyarddone 11:49
    48. Death CavalryDeath Cavalry
    49. Advanced Metal ExtractorT2 mex
    50. Death CavalryDeath Cavalry
    51. BrimstoneAnti-swarm shipnot finished by 15:00
    52. Advanced Construction SubAdvanced Construction Sub
    53. Construction ShipCon ship
    54. PathfinderPathfinder ×2
    55. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 13:20
    56. PathfinderPathfinder
    57. PhantasmRadar jammer ship
    58. Wind ×3
    59. BrimstoneAnti-swarm ship
    60. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 14:36
    61. Wind ×2
    62. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    63. Death CavalryDeath Cavalry
    64. Wind
    65. BrimstoneAnti-swarm ship
    66. Wind
    67. Death CavalryDeath Cavalry
    68. Wind
    69. BrimstoneAnti-swarm ship
    70. Wind
    71. BuccaneerCruiserdone 14:11
    72. Wind
    73. Death CavalryDeath Cavalry
    74. Wind ×2
    75. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    76. Wind
    77. BuccaneerCruiser
    78. Wind
    79. Death CavalryDeath Cavalry
    80. Wind
    81. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    82. Twin GuardTwin Guard
    83. T2 converter
    84. DespotBattleshipnot finished by 15:00
    85. Death CavalryDeath Cavalry
    86. LampreyLampreydone 14:52
    87. Twin GuardTwin Guard ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is [MooDeng]NongJohn's (40 OS, 24/09/2026); 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

[MooDeng]NongJohn

40.0 OS · 24/09/2026

Open source match ↗

3 received units · includes a constructor
274 metal received · 148365 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