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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 · 1266 distinct matches · 170 players · 55% of Cortex Geo sea games · team won 54% of 1409 · 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 1266 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 · 3 steps
    1. Mex ×3
    2. Wind ×3
    3. Bot LabBot Labdone 1:04 · 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 · 7 steps
    1. Windfor Air
    2. Construction BotCon bot
    3. Windfor Air
    4. GraverobberGraverobber ×2
    5. TrasherTrasher
    6. Construction BotCon bot
    7. ShipyardShipyarddone 2:32 · 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
    • Riptide2 Frigate
    • Orca1 Submarine
    • Herring1 Missile corvette
    Other
    • Radar Tower1 Radar Tower

    Some games also: wind (48%) · gunboat (44%) · destroyer (43%) · converter (41%) · con turret (31%)

    By 5:00 in all: 8 mex · 6 wind · 1 energy storage · 1 con turret

    The example game in this phase · 15 steps
    1. Construction BotCon bot
    2. OrcaSubmarinedone 2:58 · typical 4:20
    3. Mex
    4. RiptideFrigatedone 3:31 · typical 4:46
    5. Mex
    6. GruntGrunt
    7. GraverobberGraverobber
    8. Construction ShipCon ship
    9. GuardGuard
    10. Construction ShipCon ship
    11. GuardGuard
    12. HerringMissile corvette
    13. Mex
    14. RiptideFrigate
    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 78% 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 (41%) · 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 · 95 steps
    1. Converter
    2. Mex
    3. GuardGuard
    4. Death CavalryDeath Cavalry
    5. Bot LabEat Bot Labreclaimed for its metal
    6. Radar TowerRadar Tower
    7. Wind
    8. OrcaSubmarine
    9. Wind
    10. RiptideFrigate
    11. Wind
    12. OppressorDestroyerdone 6:44 · typical 5:57
    13. Wind ×2
    14. Energy storage
    15. Death CavalryDeath Cavalry
    16. Solar
    17. Construction ShipCon ship
    18. RiptideFrigate
    19. OppressorDestroyer
    20. GuardGuard
    21. HerringMissile corvette
    22. Radar TowerRadar Tower
    23. OppressorDestroyer
    24. Geothermal PowerplantGeodone 9:54 · typical 8:13
    25. RiptideFrigate
    26. HerringMissile corvette
    27. Death CavalryDeath Cavalry
    28. RiptideFrigate ×2
    29. Con turret
    30. OppressorDestroyer
    31. Advanced Metal ExtractorT2 mexdone 11:44 · typical 9:24
    32. Naval Construction Turret
    33. Con turret
    34. OppressorDestroyer
    35. Wind ×3
    36. Converter
    37. Mex
    38. Wind ×2
    39. Naval Construction Turret
    40. OppressorDestroyer
    41. Wind ×2
    42. Converter
    43. Naval Energy Storage
    44. Wind
    45. Converter
    46. Advanced Metal ExtractorT2 mex
    47. Seaplane PlatformSeaplane Platformdone 12:24
    48. Wind ×3
    49. OppressorDestroyer
    50. Wind
    51. Converter
    52. Wind ×4
    53. HerringMissile corvette
    54. Wind
    55. Mex
    56. Dam BusterSeaplane bomber
    57. Wind ×2
    58. Mex
    59. Converter
    60. Mex
    61. Dam BusterSeaplane bomber
    62. Wind ×2
    63. Radar TowerRadar Tower
    64. GuardGuard
    65. Wind ×2
    66. Dam BusterSeaplane bomber
    67. Converter
    68. Mex
    69. Converter
    70. Dam BusterSeaplane bomber
    71. Wind ×2
    72. Advanced Metal ExtractorT2 mex
    73. Dam BusterSeaplane bomber
    74. Wind ×3
    75. Dam BusterSeaplane bomber
    76. Mex
    77. Wind ×2
    78. Dam BusterSeaplane bomber
    79. Wind
    80. Converter
    81. Dam BusterSeaplane bomber
    82. Wind ×2
    83. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    84. Dam BusterSeaplane bomber
    85. Wind ×3
    86. Dam BusterSeaplane bomber
    87. Wind ×2
    88. WatcherRadar plane
    89. Wind ×2
    90. WatcherRadar plane
    91. Advanced Metal ExtractorT2 mex
    92. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    93. Wind ×2
    94. Converter
    95. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is iriS_xe's (33 OS, 25/09/2026); 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 83% 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

1409 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
6:005404465250
7:006875921551
8:0085591551906
9:001039824511340
10:001255235432044
11:001514546842801
12:001819460473694
13:002148872774461
14:002524986485371
15:002909099436386
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

iriS_xe

32.6 OS · 25/09/2026

Open source match ↗

4 received units · includes a constructor
220 metal received · 35638 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=1400
Shipyard3:19Middle 50%: 3:02–3:38 · n=1404
Orca4:20Middle 50%: 3:51–5:01 · n=915
Riptide4:46Middle 50%: 4:11–5:29 · n=1367
Oppressor5:57Middle 50%: 5:13–6:47 · n=1317
Geothermal Powerplant8:13Middle 50%: 7:13–9:26 · n=1342
Advanced Metal Extractor9:24Middle 50%: 8:48–10:21 · n=1240

Played most by

Elpoloow113games of this buildhihimik67games of this buildSHOGVN59games of this buildPRO_Rerory52games of this buildAlphacure50games of this build