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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 · 1304 distinct matches · 172 players · 55% of Cortex Geo sea games · team won 54% of 1451 · 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 1304 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 ×3
    2. Wind ×2for Air
    3. Wind ×2
    4. Bot LabBot Labdone 1:12 · 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 (48%) · trasher (40%) · energy storage (38%)

    By 2:54 in all: 4 mex · 4 wind · 1 energy storage

    The example game in this phase · 11 steps
    1. Wind
    2. GraverobberGraverobber
    3. Construction BotCon bot
    4. Wind ×3
    5. GraverobberGraverobber
    6. Construction BotCon bot
    7. Mex
    8. Construction BotCon botfor Beach sea
    9. Con turret
    10. Radar TowerRadar Tower
    11. ShipyardShipyarddone 3:05 · 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
    • Riptide1 Frigate
    • Orca1 Submarine
    • Herring1 Missile corvette
    Other
    • Radar Tower1 Radar Tower

    Some games also: wind (48%) · gunboat (44%) · 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 · 16 steps
    1. Construction BotCon bot
    2. Mex
    3. Construction ShipCon ship
    4. RiptideFrigatedone 3:57 · typical 4:46
    5. GruntGrunt
    6. Mex ×2
    7. Radar TowerRadar Tower
    8. RiptideFrigate
    9. Geothermal PowerplantGeodone 6:54 · typical 8:11
    10. Wind
    11. ThistleThistle
    12. GruntGrunt
    13. Radar TowerRadar Tower
    14. Mex
    15. Wind ×3
    16. GuardGuard
  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 (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 · 59 steps
    1. Wind
    2. OrcaSubmarinedone 6:08 · typical 4:20
    3. Wind ×4
    4. JellyfishJellyfish
    5. GuardGuard
    6. Wind ×6
    7. HerringMissile corvette
    8. GuardGuard
    9. Wind
    10. Bot LabEat Bot Labreclaimed for its metal
    11. HerringMissile corvette
    12. ThistleThistle
    13. Converter ×2
    14. RiptideFrigate
    15. Radar TowerRadar Tower
    16. Converter
    17. RiptideFrigate
    18. Converter
    19. ThistleThistle
    20. Converter
    21. RiptideFrigate
    22. Converter
    23. OppressorDestroyerdone 8:16 · typical 5:58
    24. GuardGuard
    25. Twin GuardTwin Guard
    26. Converter ×2
    27. OppressorDestroyer
    28. GuardGuard
    29. Advanced Metal ExtractorT2 mexdone 9:12 · typical 9:24
    30. Death CavalryDeath Cavalry
    31. Twin GuardTwin Guard
    32. Death CavalryDeath Cavalry
    33. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    34. Advanced Metal ExtractorT2 mex
    35. HerringMissile corvette
    36. Advanced Metal ExtractorT2 mex
    37. Construction ShipCon ship
    38. RiptideFrigate ×2
    39. Naval Construction Turret
    40. RiptideFrigate ×3
    41. Advanced Metal ExtractorT2 mex
    42. OppressorDestroyer
    43. Naval Construction Turret
    44. Mex
    45. Naval Construction Turret
    46. OppressorDestroyer
    47. Advanced ShipyardAdvanced Shipyarddone 12:29
    48. Advanced Metal ExtractorT2 mex
    49. DespotBattleshipdone 13:26
    50. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    51. PhantasmRadar jammer ship
    52. Advanced Metal ExtractorT2 mex
    53. GuardGuard
    54. Advanced Construction SubAdvanced Construction Sub
    55. PathfinderPathfinder ×2
    56. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:49
    57. Death CavalryDeath Cavalry
    58. BuccaneerCruisernot finished by 15:00
    59. Death CavalryDeath Cavalry

Counts are medians over the build's games: half of them build more, half fewer. The example game is Parasaurolophus'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 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

1451 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
6:005403465250
7:006880921551
8:0085571544899
9:001040324401331
10:001255934972026
11:001514546412775
12:001818460413685
13:002150672404450
14:002524985805343
15:002909799216373
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

Parasaurolophus

30.0 OS · 10/10/2026

Open source match ↗

3 received units · includes a constructor
264 metal received · 6641 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=1442
Shipyard3:19Middle 50%: 3:02–3:38 · n=1446
Orca4:20Middle 50%: 3:51–5:03 · n=941
Riptide4:46Middle 50%: 4:11–5:29 · n=1404
Oppressor5:58Middle 50%: 5:13–6:47 · n=1356
Geothermal Powerplant8:11Middle 50%: 7:12–9:24 · n=1380
Advanced Metal Extractor9:24Middle 50%: 8:48–10:22 · n=1277

Played most by

Elpoloow113games of this buildhihimik73games of this buildSHOGVN59games of this buildPRO_Rerory52games of this buildAlphacure50games of this build