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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

Cortex Geo sea build order · Supreme Isthmus

The role's default economy-first opening: bot lab then shipyard in the cove, early frigate and destroyer with a sub, taking geo on time before transitioning into a mixed navy for the rest of the game.

Usually shipyard in the cove (98%) · geo on time (83%)

#naval #eco · 1285 distinct matches · 171 players · 55% of Cortex Geo sea games · team won 53% of 1433 · Recently observed

HOW TO PLAY IT

Key timing: Bot Lab by 1:12, Shipyard by 3:17

  1. Open 3 mex into wind, then drop Bot Lab in cove.
  2. Finish Bot Lab, keep teching mex and wind.
  3. Get Shipyard up and start pumping subs and frigates.
  4. Eat the Bot Lab for metal once you have T1 units defending.
  5. Push out submarine, frigate, destroyer to contest sea.
  6. Bring geothermal online and transition toward T2 constructor.

Phase by phase

TYPICAL OF ITS 1285 GAMES · AGAINST STANDARD GEO SEA
  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
    • Wind Turbine2Windfor allies+2 vs standard
    Order
    1. Bot LabBot Lab after 3 mex, 3 winddone ~1:12, middle half 1:08–1:21

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 4 steps
    1. Mex ×3
    2. Wind ×5
    3. Energy storage
    4. Bot LabBot Labdone 1:29 · typical 1:12
  2. 2

    Bot Lab to Shipyard

    Economy
    • Metal Extractor1Mex
    • Wind Turbine2Wind
    Order
    1. ShipyardShipyard after 4 mex, 4 wind, 1 energy storagedone ~3:19, middle half 3:02–3:38
    Builders
    • Graverobber3 Graverobber
    • Construction Bot3 Con bot
    Army
    • Grunt1 Grunt

    Some games also: con turret (47%) · trasher (40%) · energy storage (38%)

    By 2:54 in all: 4 mex · 4 wind · 1 energy storage

    The example game in this phase · 6 steps
    1. GraverobberGraverobber
    2. Construction BotCon bot
    3. GraverobberGraverobber
    4. Construction BotCon bot ×2
    5. GraverobberGraverobber
    6. ShipyardShipyarddone 3:03 · typical 3:19
  3. 3

    Shipyard to 5:00

    Economy
    • Metal Extractor4Mex
    Order
    1. Bot LabEat Bot Lab
    Builders
    • Construction Ship1 Con ship
    Army
    • Guard1 Guard
    • Riptide1 Frigate
    • Orca1 Submarine
    • Herring1 Missile corvette
    Other
    • Radar Tower1 Radar Tower

    Some games also: wind (48%) · gunboat (44%) · destroyer (43%) · converter (40%) · con turret (30%)

    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. TrasherTrasher
    3. GruntGrunt ×2
    4. SupporterGunboat ×5
    5. Construction ShipCon ship
    6. Bot LabEat Bot Labreclaimed for its metal
    7. RiptideFrigatedone 3:49 · typical 4:46
    8. Mex ×2
    9. RiptideFrigate
    10. Radar TowerRadar Tower
    11. Mex
    12. HerringMissile corvette
    13. Con turret
    14. OppressorDestroyernot finished by 15:00 · typical 5:58
    15. Mex
  4. 4

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • Wind Turbine6Wind−8 vs standard
    • Energy Converter3Converter+3 vs standard
    Order
    1. Geothermal PowerplantGeo after 9 mex, 9 wind, 2 converterin 77% of games
    Builders
    • Construction Turret1 Con turret
    • Death Cavalry2 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Guard2 Guard
    • Riptide5 Frigate
    • Herring2 Missile corvette

    Some games also: Thistle (42%) · submarine (31%) · Urchin (30%)

    By 10:00 in all: 10 mex · 13 wind (standard 21) · 1 geo · 4 converter (standard 2) · 1 energy storage · 2 con turret

    The example game in this phase · 87 steps
    1. RiptideFrigate
    2. SupporterGunboat
    3. Mex
    4. SupporterGunboat ×2
    5. GuardGuard
    6. SupporterGunboat ×2
    7. OrcaSubmarinedone 5:55 · typical 4:20
    8. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    9. HerringMissile corvette
    10. OppressorDestroyer
    11. Geothermal PowerplantGeodone 7:49 · typical 8:12
    12. SupporterGunboat
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. SupporterGunboat ×2
    15. Wind
    16. Advanced Metal ExtractorT2 mexdone 8:20 · typical 9:24
    17. Construction ShipCon ship
    18. Death CavalryDeath Cavalry
    19. Wind ×2
    20. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    21. Wind ×2
    22. Converter
    23. Wind
    24. Con turret
    25. Converter
    26. Mex
    27. Advanced Metal ExtractorT2 mex
    28. ShipyardEat Shipyardreclaimed for its metal
    29. Advanced ShipyardAdvanced Shipyarddone 9:40
    30. Converter
    31. Wind
    32. Converter
    33. Mex
    34. Wind
    35. Mex
    36. Wind
    37. Advanced Metal ExtractorT2 mex
    38. Wind
    39. Advanced Construction SubAdvanced Construction Sub
    40. Wind ×2
    41. PathfinderPathfinder
    42. Con turret
    43. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 10:48
    44. PathfinderPathfinder ×2
    45. Wind
    46. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    47. Advanced Metal ExtractorT2 mex
    48. Wind
    49. PathfinderPathfinder
    50. Wind
    51. PathfinderPathfinder
    52. Wind
    53. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    54. Wind
    55. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    56. OasisOasis
    57. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    58. Wind
    59. Con turret
    60. Advanced Metal ExtractorT2 mex
    61. Wind
    62. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    63. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    64. Wind ×4
    65. Advanced Metal ExtractorT2 mex
    66. Wind
    67. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    68. Mex
    69. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    70. Naval Metal Storage
    71. Mex
    72. Con turret
    73. Wind
    74. Naval Metal Storage ×4
    75. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    76. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    77. Wind
    78. Advanced Metal ExtractorT2 mex
    79. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    80. Wind
    81. OasisOasis
    82. Wind
    83. Advanced Sonar StationAdvanced Sonar Station
    84. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    85. Advanced Metal ExtractorT2 mex
    86. Con turret
    87. PhantasmRadar jammer ship

Counts are medians over the build's games: half of them build more, half fewer. The example game is NihilisticDuck73's (34 OS, 14/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:41 · in 75% of games

You get

  • Finch1 Finch from Airfirst at 1:52 · in 82% of games
  • Hercules1 Light transport from Airfirst at 2:00 · in 77% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 7:42 · in 90% 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

1433 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039800
2:0092900
3:00155300
4:002865050
5:00405815052
6:005405464250
7:006877920545
8:0085571545901
9:001040124401333
10:001255235142031
11:001514246502784
12:001818460243686
13:002148872404451
14:002524985825354
15:002909799346381
WHAT THE NUMBERS SAY

This is the role's own baseline, winning a bit over half its games with steady eco scaling and sea trades roughly matching losses.

  • + Team wins slightly over half of games played.
  • + Metal production scales from ~4k to ~29.5k by 15:00.
  • − Own metal lost climbs to 6875 by 15:00, matching kills closely.
  • − T2 factory only reached in 40% of games, limiting late power.
THE EXAMPLE YOU ARE READING

NihilisticDuck73

34.3 OS · 14/10/2026

Open source match ↗

9 received units · includes a constructor
823 metal received · 55983 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:08–1:21 · n=1424
Shipyard3:19Middle 50%: 3:02–3:38 · n=1428
Orca4:20Middle 50%: 3:51–5:02 · n=930
Riptide4:46Middle 50%: 4:11–5:29 · n=1389
Oppressor5:58Middle 50%: 5:13–6:47 · n=1338
Geothermal Powerplant8:12Middle 50%: 7:12–9:24 · n=1363
Advanced Metal Extractor9:24Middle 50%: 8:48–10:22 · n=1262

Played most by

Elpoloow113games of this buildhihimik71games of this buildSHOGVN59games of this buildPRO_Rerory52games of this buildAlphacure50games of this build