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Geo sea / Legion / Economy first / OBSERVED BUILD

Standard geo sea

Baseline cove-side sea play: bot lab then shipyard in the cove around 3:06, first Syracusia by 5:04, geothermal on time around 7:42 and an Advanced Metal Extractor to build up eco, transitioning into more Syracusia and Argonaut over the…

Usually shipyard in the cove (95%) · geo on time (89%)

#naval #eco · 19 distinct matches · 9 players · 41% of Legion Geo sea games · team won 47% of 19 · Recently observed

HOW TO PLAY IT

Key timing: First Syracusia by 5:18

  1. Take 3 mex and open into wind while starting the bot lab.
  2. Rush the bot lab finish for early defense on the coast.
  3. Get the shipyard up to start frigate production.
  4. Push the first Syracusia frigate out for sea control.
  5. Layer geothermal and advanced mex, then keep feeding the Syracusia navy.

Phase by phase

TYPICAL OF ITS 19 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 Legion Bot Lab

    Economy
    • Metal Extractor3Mex
    Order
    1. Legion Bot LabLegion Bot Lab after 3 mexdone ~1:07, middle half 1:01–1:14

    Some games also: solar (47%) · wind (47%)

    The standard build makes here, this one skips: 3 wind

    By 0:50 in all: 3 mex

    The example game in this phase · 5 steps
    1. Mex ×3
    2. Wind
    3. Solar
    4. Wind ×2
    5. Legion Bot LabLegion Bot Labdone 1:16 · typical 1:07
  2. 2

    Legion Bot Lab to Shipyard

    Economy
    • Metal Extractor1Mex
    Order
    1. ShipyardShipyard after 4 mex, 3 wind, 1 solardone ~3:06, middle half 2:36–3:41
    Builders
    • Zagreus3 Zagreus
    • Legion Construction Bot3 Legion Construction Bot

    Some games also: wind (47%) · con turret (37%) · Goblin (32%) · wind for allies (32%)

    The standard build makes here, this one skips: 3 wind

    By 2:38 in all: 4 mex · 3 wind (standard 5) · 1 solar

    The example game in this phase · 15 steps
    1. ZagreusZagreus
    2. Windfor Air
    3. Legion Construction BotLegion Construction Bot
    4. Energy storage
    5. Windfor Air
    6. ZagreusZagreus
    7. Con turret
    8. Legion Construction BotLegion Construction Bot
    9. Wind
    10. GoblinGoblin
    11. Mex
    12. GoblinGoblin
    13. Legion Construction BotLegion Construction Bot
    14. ZagreusZagreus
    15. ShipyardShipyarddone 3:06 · typical 3:06
  3. 3

    Shipyard to 5:00

    Economy
    • Metal Extractor4Mex
    • Wind Turbine2Wind
    Builders
    • Construction Ship1 Con ship
    Army
    • Pharos1 Pharos
    • Argonaut2 Argonaut
    • Syracusia1 Syracusia

    Some games also: con turret (47%) · converter (47%) · Legion Drone (42%) · Radar Tower (42%) · Hippocampus (37%)

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

    By 5:00 in all: 8 mex · 4 wind (standard 9) · 1 solar · 1 energy storage · 1 con turret

    The example game in this phase · 21 steps
    1. Converter
    2. Construction ShipCon ship
    3. Converter
    4. Mex
    5. ArgonautArgonaut
    6. Converter ×2
    7. HippocampusHippocampus ×2
    8. Mex
    9. SyracusiaSyracusiadone 4:27 · typical 5:04
    10. Mex
    11. Radar TowerRadar Tower
    12. Converter
    13. Mex
    14. Legion DroneLegion Drone
    15. IapetusIapetus
    16. Converter
    17. ArgonautArgonaut
    18. Legion DroneLegion Drone
    19. Converter
    20. PharosPharos
    21. PolybolosPolybolos
  4. 4

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex−2 vs standard
    • Wind Turbine14Wind
    • Energy Converter3Converter+3 vs standard
    • Energy Storage1Energy storage
    Order
    1. Geothermal PowerplantGeo after 9 mex, 9 wind, 3 converter
    Builders
    • Construction Turret2 Con turret
    • Dionysus1 Dionysus
    Army
    • Pharos1 Pharos −3 vs standard
    • Legion Drone10 Legion Drone

    Some games also: con ship (42%) · Hippocampus (32%)

    The standard build makes here, this one skips: 2 Bramble

    By 10:00 in all: 9 mex · 18 wind · 1 solar · 1 geo · 5 converter · 1 energy storage

    The example game in this phase · 78 steps
    1. Converter
    2. SyracusiaSyracusia
    3. Geothermal PowerplantGeodone 7:00 · typical 7:42
    4. Wind
    5. Mex
    6. Wind
    7. Legion DroneLegion Drone
    8. Construction ShipCon ship
    9. Wind
    10. SthenoStheno
    11. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    12. Legion DroneLegion Drone
    13. ArgonautArgonaut
    14. Wind
    15. HippocampusHippocampus
    16. Wind
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    18. Wind
    19. HippocampusHippocampus
    20. PharosPharos
    21. Con turret
    22. ArgonautArgonaut
    23. PharosPharos
    24. ArgonautArgonaut
    25. Legion DroneLegion Drone ×2
    26. SyracusiaSyracusia
    27. Legion DroneLegion Drone ×2
    28. Converter
    29. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    30. Legion DroneLegion Drone
    31. Converter
    32. Legion DroneLegion Drone
    33. SyracusiaSyracusia
    34. Legion DroneLegion Drone
    35. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    36. Legion DroneLegion Drone
    37. Converter
    38. Legion DroneLegion Drone
    39. Converter
    40. Legion DroneLegion Drone ×3
    41. Advanced Metal ExtractorT2 mexdone 10:24
    42. IapetusIapetus
    43. Converter
    44. Legion DroneLegion Drone
    45. DionysusDionysus
    46. Legion DroneLegion Drone
    47. Converter
    48. HippocampusHippocampus
    49. Legion DroneLegion Drone
    50. HippocampusHippocampus
    51. Converter
    52. HippocampusHippocampus
    53. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2
    54. HippocampusHippocampus
    55. Converter
    56. HippocampusHippocampus
    57. Legion DroneLegion Drone
    58. Converter
    59. Legion DroneLegion Drone ×3
    60. SyracusiaSyracusia
    61. Advanced Metal ExtractorT2 mex
    62. Legion DroneLegion Drone ×2
    63. Energy storage
    64. Legion DroneLegion Drone
    65. Con turret
    66. Legion DroneLegion Drone ×2
    67. SyracusiaSyracusia
    68. Con turret
    69. Legion DroneLegion Drone ×3
    70. Construction ShipCon ship
    71. Legion DroneLegion Drone
    72. CacophonyCacophony
    73. Legion DroneLegion Drone
    74. Naval Construction Turret
    75. Legion DroneLegion Drone
    76. HiveHive
    77. Legion DroneLegion Drone ×3
    78. Mex

Counts are medians over the build's games: half of them build more, half fewer. The example game is armjanus's (41 OS, 19/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:41 · in 58% of games

You get

  • Finch1 Finch from Airfirst at 1:47 · in 47% of games
  • Hercules1 Light transport from Airfirst at 2:10 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 7:32 · in 74% 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

02k4k
0:005:0010:0015:00

metal

19 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039600
2:0092900
3:00162700
4:0028655251
5:00401419052
6:005343590118
7:006793615170
8:0082631382320
9:00102921700417
10:00122392261780
11:001491332351531
12:001794336352165
13:002024852952311
14:002356863333554
15:002793789533703
WHAT THE NUMBERS SAY

Standard geo sea sits near an even split on wins while destroying more metal than it loses by 15:00, typical for a contested sea role.

  • + Enemy metal destroyed reaches 7775 by 15:00 against 4863 lost.
  • + Syracusia dominates army composition at 43%, showing a clear naval focus.
  • − Team win rate is only 47%, essentially a coin flip.
  • − T2 factory only completes in 32% of games, so tech transition often stalls.
THE EXAMPLE YOU ARE READING

armjanus

40.6 OS · 19/09/2026

Open source match ↗

3 received units · includes a constructor
737 metal received · 52958 energy received

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

Typical milestones

Legion Bot Lab1:07Middle 50%: 1:01–1:14 · n=19
Shipyard3:06Middle 50%: 2:36–3:41 · n=19
Syracusia5:04Middle 50%: 4:33–5:48 · n=19
Geothermal Powerplant7:42Middle 50%: 6:57–9:56 · n=19
Advanced Metal Extractor9:11Middle 50%: 8:42–9:28 · n=13

Played most by

KingBenjai8games of this buildHighlyRegarded2games of this buildPRO_Rerory2games of this buildRysica2games of this buildarmjanus1game of this build