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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 · 963 distinct matches · 100 players · 83% of Cortex Geo sea games · team won 52% of 1080 · 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 963 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 1:06–1:25

    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 ×2for Air
    3. Wind
    4. Bot LabBot Labdone 1:06 · 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 3:02–3:33
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (46%) · trasher (39%) · energy storage (34%) · wind for allies (32%)

    By 2:51 in all: 4 mex · 5 wind · 1 energy storage

    The example game in this phase · 12 steps
    1. Solar
    2. GraverobberGraverobber
    3. Wind ×2
    4. Construction BotCon bot
    5. GraverobberGraverobber
    6. Construction BotCon bot ×2
    7. Mex
    8. Construction BotCon bot
    9. Energy storage
    10. GruntGrunt ×2
    11. Mex
    12. ShipyardShipyarddone 3:27 · 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 (49%) · wind (49%) · missile corvette (48%) · 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 · 17 steps
    1. Mex
    2. SupporterGunboat
    3. Converter
    4. SupporterGunboat ×2
    5. GuardGuard
    6. SupporterGunboat ×5
    7. Converter
    8. GuardGuard
    9. SupporterGunboat ×2
    10. Construction ShipCon ship
    11. Radar TowerRadar Tower
    12. Death CavalryDeath Cavalry
    13. Con turret
    14. ThistleThistle
    15. Mex
    16. Converter
    17. OrcaSubmarinenot finished by 15:00 · typical 4:19
  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
    • Oppressor2 Destroyer
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: geo (48%) · Thistle (41%) · submarine (34%)

    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 · 71 steps
    1. Mex
    2. RiptideFrigatenot finished by 15:00 · typical 4:36
    3. OppressorDestroyernot finished by 15:00 · typical 5:52
    4. HerringMissile corvette
    5. SupporterGunboat
    6. Mex
    7. Metal storage
    8. SupporterGunboat
    9. Wind
    10. SupporterGunboat ×2
    11. Wind
    12. SupporterGunboat ×6
    13. Wind
    14. RiptideFrigate ×3
    15. Wind
    16. OrcaSubmarine
    17. RiptideFrigate
    18. Radar TowerRadar Tower
    19. OppressorDestroyer
    20. HerringMissile corvette
    21. Wind
    22. Geothermal PowerplantGeodone 10:10 · typical 7:59
    23. Death CavalryDeath Cavalry
    24. Con turret
    25. RiptideFrigate
    26. Wind
    27. Tidal
    28. Advanced Metal ExtractorT2 mexdone 10:48 · typical 9:22
    29. Tidal
    30. RiptideFrigate ×3
    31. OppressorDestroyer
    32. Mex
    33. HerringMissile corvette
    34. Death CavalryDeath Cavalry
    35. RiptideFrigate
    36. Converter
    37. HerringMissile corvette
    38. SupporterGunboat
    39. Converter
    40. SupporterGunboat ×3
    41. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    42. Converter
    43. SupporterGunboat
    44. Advanced Metal ExtractorT2 mex
    45. HerringMissile corvette
    46. Converter
    47. HerringMissile corvette ×2
    48. Converter
    49. HerringMissile corvette
    50. Converter
    51. HerringMissile corvette
    52. RiptideFrigate
    53. Advanced Metal ExtractorT2 mex
    54. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    55. RiptideFrigate ×2
    56. OppressorDestroyer
    57. HerringMissile corvette
    58. Death CavalryDeath Cavalry
    59. Advanced Metal ExtractorT2 mex
    60. RiptideFrigate ×4
    61. OppressorDestroyer
    62. Con turret ×2
    63. HerringMissile corvette ×2
    64. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    65. HerringMissile corvette
    66. Death CavalryDeath Cavalry
    67. Construction ShipCon ship
    68. Aircraft PlantAircraft Plantdone 14:54
    69. Con turret
    70. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    71. HerculesLight transport

Counts are medians over the build's games: half of them build more, half fewer. The example game is thermite's (36 OS, 28/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:48 · in 72% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 83% 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

1080 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156700
4:002903051
5:00410813152
6:005464441242
7:006946931551
8:0086181570905
9:001049724631363
10:001261536342072
11:001522148872938
12:001812964053801
13:002147974014458
14:002507986465388
15:002882297766321
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

thermite

36.0 OS · 28/09/2026

Open source match ↗

6 received units · includes a constructor
327 metal received · 53633 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:06–1:25 · n=1069
Shipyard3:17Middle 50%: 3:02–3:33 · n=1074
Orca4:19Middle 50%: 3:54–5:00 · n=747
Riptide4:36Middle 50%: 4:08–5:21 · n=1048
Oppressor5:52Middle 50%: 5:09–6:34 · n=977
Geothermal Powerplant7:59Middle 50%: 7:01–8:59 · n=648
Advanced Metal Extractor9:22Middle 50%: 8:46–10:10 · n=926

Played most by

sirniho121games of this buildSHOGVN86games of this buildOptimusprimenutt84games of this buildPRO_Rerory47games of this buildhihimik41games of this build