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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 · 1341 distinct matches · 174 players · 55% of Cortex Geo sea games · team won 54% of 1489 · 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 1341 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 ×3for unknown
    2. Wind ×6for unknown
    3. Energy storagefor unknown
    4. Bot LabBot Labdone 1:47 · 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 · 6 steps
    1. Construction BotCon botfor unknown
    2. GraverobberGraverobberfor unknown
    3. Con turretfor unknown
    4. Construction BotCon bot ×3for unknown
    5. GraverobberGraverobberfor unknown
    6. Mexfor unknown
  3. 3

    Shipyard to 5:00

    Economy
    • Metal Extractor4Mex
    Order
    1. Bot LabEat Bot Lab
    Builders
    • Construction Ship1 Con ship
    Army
    • Guard1 Guard
    • Riptide2 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 · 10 steps
    1. GraverobberGraverobberfor unknown
    2. TrasherTrasher ×2for unknown
    3. Mex ×4for unknown
    4. Geothermal PowerplantGeofor unknowndone 4:41 · typical 8:09
    5. GuardGuardfor unknown
    6. Bot LabEat Bot Labreclaimed for its metal
    7. GuardGuardfor unknown
    8. Con turretfor unknown
    9. GuardGuard ×4for unknown
    10. Radar TowerRadar Towerfor unknown
  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 (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 · 44 steps
    1. Radar TowerRadar Towerfor unknown
    2. Con turret
    3. Radar TowerRadar Tower
    4. GuardGuard ×2for unknown
    5. JellyfishJellyfishfor unknown
    6. GuardGuardfor unknown
    7. ShipyardShipyardfor unknowndone 5:46 · typical 3:20
    8. RiptideFrigatefor unknowndone 5:55 · typical 4:46
    9. GuardGuardfor unknown
    10. Radar TowerRadar Towerfor unknown
    11. OrcaSubmarinefor unknowndone 6:18 · typical 4:20
    12. Converter ×4for unknown
    13. Construction ShipCon shipfor unknown
    14. Converter ×3for unknown
    15. GuardGuardfor unknown
    16. OppressorDestroyerfor unknowndone 7:13 · typical 5:58
    17. Converterfor unknown
    18. Mexfor unknown
    19. Converterfor unknown
    20. Converter
    21. Mexfor unknown
    22. GuardGuardfor unknown
    23. Converterfor unknown
    24. HerringMissile corvettefor unknown
    25. Death CavalryDeath Cavalryfor unknown
    26. RiptideFrigate
    27. Converterfor unknown
    28. Windfor unknown
    29. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2for unknown
    30. Converterfor unknown
    31. Windfor unknown
    32. Converter ×2for unknown
    33. Windfor unknown
    34. Twin GuardTwin Guard
    35. RiptideFrigatefor unknown
    36. Naval Radar / Sonar TowerNaval Radar / Sonar Towerfor unknown
    37. Twin GuardTwin Guard
    38. RiptideFrigatefor unknown
    39. Windfor unknown
    40. OrcaSubmarinefor unknown
    41. Windfor unknown
    42. Naval Radar / Sonar TowerNaval Radar / Sonar Towerfor unknown
    43. OppressorDestroyerfor unknown
    44. Windfor unknown

Counts are medians over the build's games: half of them build more, half fewer. The example game is BOBI's (30 OS, 28/08/2026); 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

1489 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039800
2:0092900
3:00155400
4:002865050
5:00405815052
6:005404461250
7:006880923545
8:0085571533891
9:001040524341322
10:001256534802010
11:001518146132755
12:001822460243662
13:002161172774435
14:002534286015298
15:002916599436351
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

BOBI

30.1 OS · 28/08/2026

Open source match ↗

4 received units
133 metal received · 12820 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=1480
Shipyard3:20Middle 50%: 3:02–3:39 · n=1484
Orca4:20Middle 50%: 3:51–5:03 · n=965
Riptide4:46Middle 50%: 4:11–5:29 · n=1441
Oppressor5:58Middle 50%: 5:13–6:46 · n=1394
Geothermal Powerplant8:09Middle 50%: 7:11–9:24 · n=1417
Advanced Metal Extractor9:24Middle 50%: 8:48–10:22 · n=1311

Played most by

Elpoloow113games of this buildhihimik73games of this buildAlphacure61games of this buildSHOGVN59games of this buildPRO_Rerory52games of this build