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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 · 941 distinct matches · 99 players · 83% of Cortex Geo sea games · team won 52% of 1055 · 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 941 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 (50%)

    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 1:17 · 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 2:51 in all: 4 mex · 5 wind · 1 energy storage

    The example game in this phase · 10 steps
    1. GraverobberGraverobber
    2. Wind ×2
    3. Construction BotCon bot ×2
    4. GraverobberGraverobber
    5. Construction BotCon bot
    6. Mex
    7. Construction BotCon bot
    8. Energy storage
    9. GruntGrunt ×2
    10. ShipyardShipyarddone 3:10 · 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 (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 · 26 steps
    1. Wind
    2. Mex
    3. SupporterGunboat ×2
    4. RiptideFrigatenot finished by 15:00 · typical 4:36
    5. Wind
    6. SupporterGunboat
    7. Mex
    8. SupporterGunboat ×2
    9. Wind
    10. GuardGuard
    11. SupporterGunboat
    12. Con turret
    13. SupporterGunboat
    14. Construction ShipCon ship
    15. Death CavalryDeath Cavalry
    16. Wind
    17. GuardGuard
    18. SupporterGunboat ×4
    19. Radar TowerRadar Tower
    20. Construction ShipCon ship
    21. ThistleThistle
    22. Wind
    23. OrcaSubmarinedone 4:58 · typical 4:19
    24. Mex
    25. Wind
    26. RiptideFrigate
  4. 4

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • Wind Turbine8Wind
    • Energy Converter2Converter
    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 (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 · 51 steps
    1. Mex
    2. Converter
    3. RiptideFrigate
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. OppressorDestroyerdone 6:18 · typical 5:51
    6. Converter
    7. Radar TowerRadar Tower
    8. ThistleThistle
    9. RiptideFrigate
    10. Converter
    11. Geothermal PowerplantGeodone 7:47 · typical 7:58
    12. RiptideFrigate
    13. HerringMissile corvette
    14. Death CavalryDeath Cavalry
    15. Converter
    16. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    17. Converter
    18. RiptideFrigate
    19. Advanced Metal ExtractorT2 mexdone 9:01 · typical 9:21
    20. RiptideFrigate
    21. Wind
    22. RiptideFrigate
    23. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    24. RiptideFrigate
    25. Wind
    26. OppressorDestroyer
    27. Mex
    28. Con turret ×2
    29. Advanced Metal ExtractorT2 mex
    30. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2
    31. HerringMissile corvette
    32. SupporterGunboat ×2
    33. Mex
    34. SupporterGunboat ×6
    35. Advanced Metal ExtractorT2 mex
    36. Death CavalryDeath Cavalry
    37. Mex
    38. RiptideFrigate
    39. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    40. RiptideFrigate ×2
    41. Radar TowerRadar Tower
    42. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    43. RiptideFrigate
    44. OppressorDestroyer
    45. HerringMissile corvette
    46. Death CavalryDeath Cavalry
    47. Con turret
    48. Construction ShipCon ship
    49. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    50. Advanced Metal ExtractorT2 mex
    51. Mex

Counts are medians over the build's games: half of them build more, half fewer. The example game is thermite's (36 OS, 26/09/2026); 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

1055 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00157000
4:002904051
5:00410813052
6:005464440241
7:006950931547
8:0086211570892
9:001050224471351
10:001263036252071
11:001525849012945
12:001816664063801
13:002151274084465
14:002512586485401
15:002884498106321
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

35.7 OS · 26/09/2026

Open source match ↗

4 received units · includes a constructor
200 metal received · 32931 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=1047
Shipyard3:17Middle 50%: 3:03–3:33 · n=1049
Orca4:19Middle 50%: 3:53–5:00 · n=727
Riptide4:36Middle 50%: 4:09–5:21 · n=1025
Oppressor5:51Middle 50%: 5:09–6:33 · n=954
Geothermal Powerplant7:58Middle 50%: 7:00–8:59 · n=635
Advanced Metal Extractor9:21Middle 50%: 8:45–10:10 · n=905

Played most by

sirniho119games of this buildOptimusprimenutt84games of this buildSHOGVN81games of this buildPRO_Rerory46games of this buildhihimik41games of this build