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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 · 1331 distinct matches · 173 players · 55% of Cortex Geo sea games · team won 54% of 1478 · 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 1331 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 · 6 steps
    1. Mex ×2
    2. Wind
    3. Mex
    4. Solar
    5. Wind ×2for Air
    6. 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, 4 wind, 1 energy storagedone ~3:20, middle half 3:02–3:39
    Builders
    • Graverobber3 Graverobber
    • Construction Bot3 Con bot
    Army
    • Grunt1 Grunt

    Some games also: con turret (48%) · trasher (40%) · energy storage (39%)

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

    The example game in this phase · 9 steps
    1. Wind
    2. GraverobberGraverobber ×3
    3. Construction BotCon bot ×2
    4. TrasherTrasher
    5. Con turret
    6. Mex
    7. Energy storage
    8. GruntGrunt
    9. ShipyardShipyarddone 3:12 · typical 3:20
  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 (43%) · 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 · 12 steps
    1. GruntGrunt
    2. Construction ShipCon ship
    3. OppressorDestroyerdone 4:04 · typical 5:58
    4. Mex ×3
    5. Bot LabEat Bot Labreclaimed for its metal
    6. Converter
    7. Mex
    8. HerringMissile corvette
    9. Converter
    10. RiptideFrigate ×2done 4:36 · typical 4:46
    11. Mex
    12. Geothermal PowerplantGeodone 7:28 · typical 8:09
  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 · 85 steps
    1. OppressorDestroyer
    2. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    3. HerringMissile corvette
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. Mex
    6. OppressorDestroyer
    7. Mex
    8. Radar TowerRadar Tower
    9. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    10. ThistleThistle
    11. HerringMissile corvette
    12. ThistleThistle
    13. OppressorDestroyer
    14. Radar TowerRadar Tower
    15. Construction ShipCon ship
    16. ThistleThistle
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    18. Construction ShipCon ship
    19. ThistleThistle
    20. Construction ShipCon ship
    21. Naval Construction Turret ×2
    22. Con turret
    23. Naval Construction Turret ×2
    24. Advanced ShipyardAdvanced Shipyarddone 9:49
    25. Mex
    26. ShipyardEat Shipyardreclaimed for its metal
    27. Mex
    28. Tidal ×3
    29. Advanced Construction SubAdvanced Construction Sub
    30. Tidal
    31. Advanced Metal ExtractorT2 mexdone 11:41 · typical 9:24
    32. Wind
    33. Tidal
    34. PathfinderPathfinder
    35. Tidal
    36. PathfinderPathfinder
    37. Tidal
    38. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    39. Tidal
    40. Wind
    41. Tidal ×2
    42. Wind
    43. Tidal ×2
    44. PathfinderPathfinder
    45. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 11:50
    46. Tidal
    47. Wind
    48. Tidal
    49. Con turret
    50. Tidal
    51. Wind
    52. PhantasmRadar jammer ship
    53. Advanced Metal ExtractorT2 mex
    54. Tidal
    55. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    56. Tidal
    57. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    58. Con turret
    59. Wind
    60. Tidal ×2
    61. Wind
    62. Tidal ×2
    63. Wind
    64. Tidal ×2
    65. Wind
    66. Advanced Metal ExtractorT2 mex
    67. OasisOasis
    68. Tidal
    69. Wind
    70. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    71. Tidal
    72. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    73. Wind
    74. Tidal ×3
    75. Wind ×3
    76. Arrow StormAnti-air shipdone 14:28
    77. Wind
    78. Advanced Metal ExtractorT2 mex
    79. DespotBattleshipnot finished by 15:00
    80. Wind
    81. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    82. Tidal ×2
    83. Wind
    84. PredatorAssault submarinenot finished by 15:00
    85. Wind ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is FrugalResources's (30 OS, 15/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:41 · in 76% 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 7:43 · 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

1478 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039800
2:0092900
3:00155400
4:002866050
5:00405815052
6:005405465250
7:006881923544
8:0085571545891
9:001040424381327
10:001256634842015
11:001517146342756
12:001820460363664
13:002154972644437
14:002530985885294
15:002914199426351
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

FrugalResources

30.1 OS · 15/10/2026

Open source match ↗

3 received units · includes a constructor
350 metal received · 38122 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=1469
Shipyard3:20Middle 50%: 3:02–3:39 · n=1473
Orca4:20Middle 50%: 3:51–5:03 · n=957
Riptide4:46Middle 50%: 4:11–5:29 · n=1430
Oppressor5:58Middle 50%: 5:13–6:46 · n=1383
Geothermal Powerplant8:09Middle 50%: 7:11–9:24 · n=1407
Advanced Metal Extractor9:24Middle 50%: 8:48–10:22 · n=1302

Played most by

Elpoloow113games of this buildhihimik73games of this buildSHOGVN59games of this buildAlphacure57games of this buildPRO_Rerory52games of this build