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Geo / Cortex / Economy first / OBSERVED BUILD

Whirlwind rush

Cortex Geo build order · Supreme Isthmus

Geo pivots to an aircraft plant around 7:00, well before the role usually touches air, and sends Whirlwind bombers (with Valiant and Finch support) straight into the enemy base rather than to the middle front.

Usually blows up the commander for T2 (70%)

#air #raid #rush · 45 distinct matches · 24 players · 6% of Cortex Geo games · team won 59% of 46 · Recently observed

THE CATCH, AND WHAT COMES WITH IT
  • WhirlwindT1 air bombers from 7:00 · 8% of role by thenFrom the Aircraft Plant. Only 8% of Geo games have it by then; others who build it get it around 7:29
  • Aircraft PlantAircraft Plant in 98%17% of all Geo games by then
  • ValiantValiant in 74%11% of all Geo games by then
  • FinchFinch in 52%7% of all Geo games by then
  • ValiantValiant in 48%6% of all Geo games by then

Started with Whirlwind (98%), Stormbringer (2%).

Where those units first fight, in 46 games with kill data: in the middle 52%, in the enemy base 46%.

Those units destroy a typical 1,980 metal of enemy units by 15:00.

Then transitions into Sheldon (14% of army), valiant (9% of army).

HOW TO PLAY IT

Key timing: Aircraft Plant by 6:57

  1. Open bot lab as usual but plan to eat it by 3:27.
  2. Get geo up on schedule to fund the air switch.
  3. Build Aircraft Plant instead of the usual T2 bot path.
  4. Push Whirlwind bombers straight into the enemy base.
  5. Reclaim the Aircraft Plant and transition back to Sheldon and T2 units.

Phase by phase

TYPICAL OF ITS 45 GAMES · AGAINST STANDARD GEO
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
PLAY THE OPENING

Follow the example game's first 8:00 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 ~1:11, middle half 0:52–1:20

    By 0:54 in all: 3 mex · 3 wind

    The example game in this phase · 3 steps
    1. Mex ×2
    2. Wind ×2
    3. Bot LabBot Labdone 0:47 · typical 1:11
  2. 2

    Bot Lab to 5:00

    Economy
    • Metal Extractor2Mex
    • Wind Turbine3Wind−2 vs standard
    • Energy Converter7Converter
    • Energy Storage1Energy storage
    Order
    1. Geothermal PowerplantGeo after 4 mex, 5 wind
    2. Bot LabEat Bot Lab
    Builders
    • Construction Turret5 Con turret
    • Graverobber5 Graverobber
    • Construction Bot2 Con bot
    • Construction Bot1 Con bot for allies
    • Graverobber1 Graverobber for allies

    Some games also: Aircraft Plant (30%)

    By 5:00 in all: 4 mex · 7 wind · 1 geo · 7 converter · 1 energy storage · 5 con turret

    The example game in this phase · 22 steps
    1. GraverobberGraverobber
    2. Wind ×3
    3. GraverobberGraverobber
    4. Solar
    5. Construction BotCon bot
    6. Wind
    7. Construction BotCon botfor Beach sea
    8. Wind
    9. Mex
    10. GraverobberGraverobber ×2
    11. GraverobberGraverobberfor Beach sea
    12. Con turret
    13. Construction BotCon botfor Beach sea
    14. Geothermal PowerplantGeodone 3:37 · typical 3:26
    15. Mex
    16. Converter ×6
    17. Con turret ×3
    18. Bot LabEat Bot Labreclaimed for its metal
    19. Aircraft PlantAircraft Plantdone 4:34 · typical 6:56
    20. ShurikenShurikenfor Air
    21. Twin GuardTwin Guard
    22. ShurikenShuriken ×3for Air
  3. 3

    5:00 to T1 air bombers

    Order
    1. Aircraft PlantAircraft Plant after 13 wind, 10 converter, 8 con turretin 67% of games
    2. WhirlwindT1 air bombers after 8 wind, 8 converter, 7 con turret
    Builders
    • Construction Turret1 Con turret

    Some games also: Advanced Geothermal Powerplant (48%) · converter (48%) · wind (39%)

    The standard build makes here, this one skips: 2 wind · 2 converter

    By 6:59 in all: 4 mex · 8 wind (standard 11) · 1 geo · 9 converter (standard 12) · 1 energy storage · 7 con turret

    The example game in this phase · 1 step
    1. WhirlwindWhirlwinddone 5:05
  4. 4

    T1 air bombers to Advanced Bot Lab

    Order
    1. Advanced Bot LabAdvanced Bot Lab after 11 wind, 10 converter, 6 con turretdone ~9:38, middle half 8:56–10:13
    Army
    • Whirlwind13 Whirlwind +13 vs standard
    • Valiant6 Valiant +6 vs standard

    Some games also: con turret (43%) · finch (43%) · wind (33%) · converter (33%)

    By 8:55 in all: 4 mex · 14 wind · 1 geo · 1 Advanced Geothermal Powerplant · 11 converter (standard 15) · 1 energy storage

    The example game in this phase · 9 steps
    1. WhirlwindWhirlwind
    2. Mex
    3. WhirlwindWhirlwind ×6
    4. Advanced Metal ExtractorT2 mexdone 6:12 · typical 5:48
    5. Aircraft PlantEat Aircraft Plantreclaimed for its metal
    6. Mex
    7. Advanced Metal ExtractorT2 mex
    8. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 7:20 · typical 7:19
    9. Advanced Bot LabAdvanced Bot Labdone 8:40 · typical 9:38
  5. 5

    Advanced Bot Lab to 15:00

    Economy
    • Energy Converter7Converter+7 vs standard
    Order
    1. Aircraft PlantEat Aircraft Plant
    Builders
    • Construction Turret1 Con turret

    Some games also: wind (46%) · valiant (41%) · Sheldon (35%) · jammer bot (35%) · radar bot (35%)

    The standard build makes here, this one skips: 5 Sheldon

    By 15:00 in all: 4 mex · 21 wind · 1 geo · 1 Advanced Geothermal Powerplant · 19 converter · 1 energy storage

    The example game in this phase · 42 steps
    1. Advanced Metal ExtractorT2 mex
    2. Converter ×3
    3. Advanced Metal ExtractorT2 mex
    4. Converter ×7
    5. DeceiverJammer bot
    6. Converter
    7. AugurRadar bot
    8. Converter
    9. SheldonSheldon ×2done 9:04
    10. Con turret
    11. DuckDuckfor Beach sea
    12. Con turret ×2
    13. DuckDuck ×13for Beach sea
    14. DuckDuck
    15. ManticoreManticore ×4done 11:30
    16. Aircraft PlantAircraft Plantdone 12:12
    17. ManticoreManticore
    18. Metal storage
    19. WhirlwindWhirlwind ×2
    20. DuckDuck ×2for Beach sea
    21. WhirlwindWhirlwind
    22. DuckDuck
    23. Advanced Construction BotT2 con bot
    24. WhirlwindWhirlwind
    25. Advanced Construction BotT2 con bot
    26. WhirlwindWhirlwind
    27. Fusion ReactorFusiondone 14:19
    28. WhirlwindWhirlwind
    29. Advanced Bot LabEat Advanced Bot Labreclaimed for its metal
    30. WhirlwindWhirlwind
    31. ValiantValiant
    32. BirdshotBirdshot
    33. ValiantValiant
    34. BirdshotBirdshot
    35. ValiantValiant ×6
    36. T2 converter
    37. ValiantValiant
    38. Con turret ×2
    39. ValiantValiant
    40. T2 converter
    41. ValiantValiant
    42. Con turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is El_Turco's (30 OS, 23/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Graverobber1 Graverobber to Beach seafirst at 2:15 · in 83% of games
  • Construction Bot1 Con bot to Beach sea or Pondfirst at 2:22 · in 78% of games

You get

  • Advanced Construction Bot1 T2 con bot from Techfirst at 4:59 · in 96% of games
  • Advanced Metal Extractor1 T2 mex from Tech or Beach sea or Pondfirst at 5:21 · in 33% of games
  • Valiant12 Valiant from Airfirst at 8:31 · in 35% of games

How it plays out

Typical game of this build against the role’s standard build, running totals by minute

  • This build
  • Standard geo

Metal produced

020k40k
0:005:0010:0015:00

metal

Enemy metal destroyed

05k10k
0:005:0010:0015:00

metal

Own metal lost

02k4k6k
0:005:0010:0015:00

metal

46 games.

Show as table
ByMetal produced: This buildMetal produced: Standard geoEnemy metal destroyed: This buildEnemy metal destroyed: Standard geoOwn metal lost: This buildOwn metal lost: Standard geo
1:003333420000
2:008458720000
3:00151515000000
4:00267926640000
5:00372536940000
6:00533255860000
7:00769178930000
8:00101941096400850
9:0012980138801952124250
10:00159321678920272961755190
11:001917519614303611042326750
12:0021773226863367223630231485
13:0024942255894396404434762397
14:0027379284235578581546604283
15:0030091313957035788153765630
WHAT THE NUMBERS SAY

Won more often than the standard build and destroyed far more enemy metal by 10:00 and 15:00.

  • + Destroys 2005 enemy metal by 10:00 vs 424 for standard.
  • + Won more often than the Geo norm in these games.
  • − Own losses jump to 2022 by 10:00 vs 260 for standard.
  • − Metal production trails standard build slightly throughout.
THE EXAMPLE YOU ARE READING

El_Turco

30.0 OS · 23/09/2026

Open source match ↗

13 received units · includes a constructor
1851 metal received · 162379 energy received

Allied construction assistance is unknown. Timings are observations, not a promise of solo reproducibility.

Typical milestones

Bot Lab1:11Middle 50%: 0:52–1:20 · n=46
Geothermal Powerplant3:26Middle 50%: 3:05–3:36 · n=46
Advanced Metal Extractor5:48Middle 50%: 5:26–6:17 · n=44
Aircraft Plant6:56Middle 50%: 4:34–7:17 · n=45
Advanced Geothermal Powerplant7:19Middle 50%: 6:56–8:10 · n=36
Advanced Bot Lab9:38Middle 50%: 8:56–10:13 · n=24

Played most by

El_Turco6games of this buildPongoPygmaeus6games of this buildOsamaBinClappin4games of this buildPRO_HYDRA4games of this buildzeus_on_god4games of this build