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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 · 1270 distinct matches · 170 players · 55% of Cortex Geo sea games · team won 54% of 1413 · 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 1270 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 ×4
    2. Wind ×2for Air
    3. Bot LabBot Labdone 1:26 · 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 · 5 steps
    1. Construction BotCon bot
    2. Energy storage
    3. Construction BotCon bot ×2
    4. TrasherTrasher
    5. ShipyardShipyarddone 3:00 · 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 (40%) · con turret (31%)

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

    The example game in this phase · 22 steps
    1. TrasherTrasher
    2. Mex
    3. GraverobberGraverobber
    4. ThistleThistle
    5. GruntGrunt
    6. GraverobberGraverobber
    7. SupporterGunboat
    8. Mex
    9. SupporterGunboat
    10. Mex
    11. Construction BotCon bot
    12. SupporterGunboat ×2
    13. Construction ShipCon ship
    14. Mex
    15. Construction ShipCon ship
    16. Mex
    17. HerringMissile corvette
    18. GuardGuard
    19. OppressorDestroyerdone 4:52 · typical 5:58
    20. Twin GuardTwin Guard
    21. Bot LabEat Bot Labreclaimed for its metal
    22. OppressorDestroyer
  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 · 86 steps
    1. Mex
    2. Geothermal PowerplantGeodone 7:07 · typical 8:13
    3. Naval Construction Turret
    4. RiptideFrigatedone 6:09 · typical 4:46
    5. WardenWarden
    6. GuardGuard
    7. RiptideFrigate ×2
    8. Wind ×2
    9. RiptideFrigate
    10. Wind ×2
    11. Radar TowerRadar Tower
    12. Wind ×4
    13. RiptideFrigate
    14. Energy storage
    15. RiptideFrigate
    16. Converter
    17. Wind ×2
    18. Converter
    19. Wind
    20. Advanced Metal ExtractorT2 mexdone 8:53
    21. Naval Construction Turret
    22. RiptideFrigate
    23. Wind
    24. Converter
    25. Wind ×2
    26. Converter
    27. RiptideFrigate
    28. Radar TowerRadar Tower
    29. RiptideFrigate
    30. Construction ShipCon ship
    31. GuardGuard
    32. OppressorDestroyer ×2
    33. Advanced Metal ExtractorT2 mex
    34. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    35. Radar TowerRadar Tower
    36. GuardGuard
    37. Advanced Metal ExtractorT2 mex
    38. Tidal
    39. HerringMissile corvette
    40. Tidal
    41. HerringMissile corvette
    42. Tidal
    43. Mex
    44. HerringMissile corvette
    45. WardenWarden
    46. Tidal
    47. OppressorDestroyer
    48. Tidal
    49. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    50. Advanced Metal ExtractorT2 mex
    51. Tidal ×2
    52. OppressorDestroyer
    53. Naval Construction Turret
    54. Tidal
    55. OppressorDestroyer
    56. Tidal
    57. Advanced Metal ExtractorT2 mex
    58. Tidal
    59. Death CavalryDeath Cavalry
    60. Tidal
    61. Death CavalryDeath Cavalry
    62. Naval Construction Turret
    63. Advanced Metal ExtractorT2 mex
    64. Tidal
    65. OppressorDestroyer ×2
    66. Advanced ShipyardAdvanced Shipyarddone 13:36
    67. OppressorDestroyer
    68. Con turret
    69. Naval Construction Turret
    70. Tidal ×2
    71. OppressorDestroyer
    72. Tidal
    73. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 14:42
    74. Advanced Construction SubAdvanced Construction Sub
    75. Tidal
    76. OppressorDestroyer
    77. Tidal
    78. Naval Construction Turret
    79. PathfinderPathfinder
    80. Tidal
    81. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:54
    82. Death CavalryDeath Cavalry
    83. Naval Construction Turret
    84. OasisOasis
    85. Death CavalryDeath Cavalry
    86. PhantasmRadar jammer ship

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

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:41 · in 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

1413 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
7:006875920551
8:0085571551910
9:001039924551343
10:001255235432041
11:001514246792801
12:001819060503692
13:002150672774461
14:002526386485371
15:002910799476381
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

Slow_but_sure

30.2 OS · 10/10/2026

Open source match ↗

17 received units · includes a constructor
542 metal received · 65854 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=1404
Shipyard3:19Middle 50%: 3:02–3:38 · n=1408
Orca4:20Middle 50%: 3:51–5:01 · n=918
Riptide4:46Middle 50%: 4:11–5:29 · n=1371
Oppressor5:58Middle 50%: 5:13–6:47 · n=1321
Geothermal Powerplant8:13Middle 50%: 7:13–9:26 · n=1346
Advanced Metal Extractor9:24Middle 50%: 8:48–10:21 · n=1244

Played most by

Elpoloow113games of this buildhihimik67games of this buildSHOGVN59games of this buildPRO_Rerory52games of this buildAlphacure50games of this build
Standard geo sea · Cortex Geo sea build order · BAR Build Atlas