ZeroSpace.gg

KD's Comprehensive Co-op Aster Guide

Roster

Roster

Barracks - 75 Hexite Cost

  • Requires a Supply Platform

  • If utilizing Barrack Units, construct 6-10 Barracks as the game progresses for fast production

  • Upgrades for units produced are researched at the Research Lab

Commando

Commando

Protectorate Co-Op T1 Army Unit

Ranged infantry equipped with a jetpack

Author Rating: B+

Roles: Ranged, DPS, Hexite Dump

Synergies: Bastion, Strider, Titan, Ironwing

  • Solid Range DPS. Significant ramp-up with Veterancy and Upgrades

  • Fragile and vulnerable to AoE; Utilize tanks or Striders to complement

  • Strength in Numbers; Hampered by Long Training Times for one unit

  • Can target Air

Ability

JetpackSpell

Jump to a target location, ignoring terrain.

View Jetpack in the Library
  • Excellent Mobility Tool; Can Jump Cliffs

  • Can be used beyond vision

  • Will use closest-possible if the target is out of range

Upgrades

Impulse Thrusters

-33% Jetpack cooldown. +42% Jetpack Range. (Affects Prefect Aster)

View Impulse Thrusters in the Library

Author Rating: B

Best Use: Any Non-Strider Build

  • Range increase is not displayed by the effect's range display circle

  • Does NOT affect the Titan Jetpack ability

  • Worth getting even without Commando production to buff Aster

  • No benefits for Commandos if you use them in Striders

Magnetic Rifling

+3 attack range (Affects Prefect Aster)

View Magnetic Rifling in the Library

Author Rating: A

Best Use: Any Commando Build

  • The resulting range is 10

  • Affects Aster; Low Utility for Aster

  • Reliable, good value for both Strider and Non-Strider Builds

  • Generally, the better upgrade for Commandos as an unit

  • Keep in mind that when using Titan-Commando, Commandos tend to end up furthest from the center

Shredding Rounds

Attacks cause targets to take 2% more damage from all sources for 8 seconds. Stacks up to 40%.

View Shredding Rounds in the Library

Author Rating: A+

Best Use: Commando-Strider Builds

  • Extremely useful with Striders; Higher Chance of Max Stacks applying

  • Low utility for regular enemies; Shreds Bosses and Objectives

  • Does NOT affect Aster

Eagle Tactics

After using Jetpack, for 4 seconds: +40% attack speed +40% movement speed. (Affects Prefect Aster)

View Eagle Tactics in the Library

Author Rating: B-

Best Use: Commando-Titan, Command-Ironwing Builds

  • Ramps up heavily with Veterancy; High DPS Output

  • Utility is very micro-dependent; Can be an excellent upgrade

  • Affects Aster

  • Very useful for keeping up with Air units

  • No benefits if utilizing Commandos in Striders

  • Can still work fine with Strider Builds though, if you keep Commandos outside

  • Jetpack can be cast over the current location to get the buff without repositioning

  • Does NOT affect the Titan Jetpack ability

Bastion

Bastion

Protectorate Co-Op T1.5 Army Unit

Infantry with short range and splash damage.

Author Rating: A

Roles: Ranged, Anti-Light, Crowd Control, Burst, +Tank

Synergies: Commando, Sentinel, Strider, Titan, Ironwing, Griffin

  • Reliable, Affordable, Straight-forward Tank (at lvl4) with powerful AoE

  • Can achieve 1000+hp with Veterancy and Health Upgrade

  • Unlike other flamethrower units, the Bastion has one slower, powerful attack instead of many smaller attacks per second; this keeps it relevant against durable foes

  • Excellent in Overwatch Striders due to Range Increase

  • Cannot target Air

Upgrades

View Reactive Armor in the Library

Author Rating: B

Best Use: Any Non-Strider Build

  • Excellent when not utilizing Striders

  • Worthless when utilizing Striders

  • Bastions are best with Striders

Overpressure Nozzle

+25% Splash range. +33% Splash area of effect.

View Overpressure Nozzle in the Library

Author Rating: A+

Best Use: Bastion-Strider Builds

  • Good all-purpose upgrade

  • Excellent when utilizing Overwatch Striders

View Kinetic Mode in the Library

Author Rating: B

Best Use: Any Non-Strider Build

  • Ensures Bastions reliably get to the front-line

  • Outside of Combat = Not taking damage, nor attacking

  • Roughly 6 Seconds to reapply after exiting combat

  • Worthless when garrisoned inside Striders

  • Movement Speed Buff can still help with Reinforcing

Retribution Protocol

Explodes on death, dealing 20 damage per second to nearby enemies. Lasts 6 seconds.

View Retribution Protocol in the Library

Author Rating: D

Best Use: N/A

  • Outside of Combat = Not taking damage, nor attacking

  • Roughly 6 Seconds to reapply after exiting combat

  • Worthless when garrisoned inside Striders

  • Movement Speed Buff can still help with Reinforcing

Sentinel

Sentinel

Protectorate Co-Op T1.5 Army Unit

Ranged infantry equipped with an anti-heavy cannon.

Author Rating: C+

Roles: Ranged, Anti-Heavy, +Anti-Air, Burst

Synergies: Bastion, Strider

  • Gimmicky Anti-Heavy Burst Specialist

  • Out-performed by Commandos

  • Anti-Air Heavy damage is subpar compared to Titans

  • Truly mediocre until massed

  • Fragile and slow

  • Requires a Research Lab

  • 100% Damage to Heavy

  • Can target Air with an upgrade

Upgrades

View Longshot Calibration in the Library

Author Rating: A

Best Use: Any Sentinel Build

  • The resulting range is 16

Falco Rounds

Sentinels can target air units.

View Falco Rounds in the Library

Author Rating: D

Best Use: N/A

  • There are significantly more cost-effective options for Anti-Air

  • Slow Attack Speed throttles performance

View Hyperdense Rounds in the Library

Author Rating: B

Best Use: Sentinel-Strider Builds

  • This brings the total bonus against Heavy to +200%

  • Excellent if you already have Anti-Air covered

War Foundry - 100 Hexite , 50 Flux Cost

  • Requires a Barrack

  • If utilizing War Foundry Units, construct 2-5 Assembly Plants as the game progresses for fast production

  • Upgrades for units produced by the War Foundry are researched at the Mechanical Research Lab

Predator

Predator

Protectorate Co-Op T2 Army Unit

Fast vehicle that can lay mines.

Author Rating: S

Roles: Ranged, Anti-Medium, +Crowd Control, DPS, +Caster

Synergies: Ironwing & Griffin

  • Deceptively powerful unit. Basically a Super-charged Commando

  • Easy to mass ; Spawns in Pairs and is cheap

  • Clunky to mix with other ground units

  • Great Veterancy Buffs (Every Predator a Heal Drone)

  • Very vulnerable to crowd control and AoE (like the Hat'un)

  • +50% damage to Medium

  • Cannot target Air

Ability

Proximity MineSpell

Lay a Proximity Mine (25hp, cloaked, deals 25 dmg, gives vision on slowed units when an enemy gets close)

View Proximity Mine in the Library
  • Holds 2 charges

  • 7sec delay between casting and chase

  • Can chase structures

  • Can count for unit-death effects such as Tempest Core and Emperor summoning

Upgrades

View Proximity Mine in the Library

Author Rating: S

Best Use: Any Predator Build

View Reinforced Matrix in the Library

Author Rating: A

Best Use: Any Predator Build

  • The shield regenerates automatically.

  • Shield increases with veterancy.

  • Shields do not benefit from Armor or bonus HP regeneration.

Titan

Titan

Protectorate Co-Op T2.5 Army Unit

Mobile mech that can use Jetpack. Equipped with a secondary anti-air weapon.

Author Rating: A

Roles: Ranged, Anti-Air, Anti-Light, DPS, +Caster

Synergies: Commando, Bastion, Griffin

  • Powerful, Mobile, Affordable. All-Purpose AND it's durable

  • Excellent AoE Anti-Air ; Weak to Swarms and Armored targets

  • Relatively covers its own weaknesses with Drone Strike

  • +25% Damage to Ground Light

  • Can target Air

Abilities

JetpackSpell

Jumps to a target location, ignoring terrain.

View Jetpack in the Library
  • Titan Jetpack does not receive any of the Commando-specific benefits

Nelson Suppression DroneSpell

Deploys an invulnerable drone that travels to the target area and deals 200 damage over 5 seconds.

View Nelson Suppression Drone in the Library
  • The drone moves manually to the target; after it arrives, there is an additional one-second delay before its ramping damage begins

  • Best aimed at stationary targets or choke points

  • Multiple drones can hit the same target

  • Reliant on having multiple Titans

  • Genuinely needs to be spammed (2-3x per Target Zone)

  • Primary purpose is to soften-up targets for the Titan

  • Can target air

Upgrades

View Jetpack in the Library

Author Rating: B

Nelson Suppression Drone

Unlocks the Drone Strike ability.

View Nelson Suppression Drone in the Library

Author Rating: A

Best Use: Titan-Griffin Builds

  • Clunky but overall fairly decent if you have good micro

  • Great synergy with Aster's many stun abilities

Antimatter Boosters

Increases weapon range by 36.364%: 15 range against ground and 20.45 against air.

View Antimatter Boosters in the Library

Author Rating: B

Best Use: Titan-Strider Builds

  • Useful for back-line support alongside Juggernauts/Striders

Juggernaut

Juggernaut

Protectorate Co-Op T3 Army Unit

Tank which gains thermal charge as it attacks. Can be discharged to deal area damage.

Author Rating: C+

Roles: Ranged, Anti-Medium, Crowd Control, Burst, Tank, Caster

Synergies: Titan, Griffin

  • Ineffective tank to Range and slow speed

  • Not expensive, but has a very long training time and meh DPS

  • Pretty much every unit that benefits from a Juggernaut outruns the Juggernaut

  • Cannot target Air

Ability

Incineration ProtocolSpell

Deals 250 damage to nearby enemies over 5 seconds. cannot move while active. 200 radius

View Incineration Protocol in the Library
  • Does not stack, so its maximum damage is 300

  • Striders and other units can push a Juggernaut forward while it channels

  • Deals damage to structures

  • Clunky against the predominantly ranged enemies in co-op

  • Do not walk your tank into the enemy solely to use this ability

  • Cannot target air

Upgrades

Mobile Discharge

Allows the juggernaut to move while Incineration Protocol is Active

View Mobile Discharge in the Library

Author Rating: C

Best Use: Any Juggernaut Build

  • Still inefficient to utilize it

  • Range is too small to be effective in Coop

  • This should have been integrated into the base unit

View Irradiating Panels in the Library

Author Rating: B

Best Use: Any Juggernaut Build

  • Quite Handy ; Still clunky

Strider

Strider

Protectorate Co-Op T3 Army Unit

Walker capable of loading infantry, allowing them to attack with increased range. Heals units inside.

Author Rating: S

Roles: Ranged, Tank, Support, Transport, +Artillery, +Burst

Synergies: Commando, Bastion, Sentinel, Ironwing, Griffin

  • Provides extra range to garrisoned units

  • Can garrison 8 Commandos, 5 Bastions or 5 Sentinels; mix and match for a total of 16 supply

  • Can garrison a plethora of other infantry units

  • Basic rule of thumb for Garrisoning: No Heavy Armor, Not Floating, Not Flying, Is Infantry

  • Cannot garrison Heroes

  • Requires Mechanical Research Lab

  • Garrisoned units can fire while the Strider is moving

  • Garrisoned units are healed while inside

  • Garrisoned units can still gain Veterancy

  • Garrisoned units do NOT benefit from AoE buff effects like Rally

  • Not Trained, but constructed on the battlefield

  • Expensive but very durable

  • Has a hidden supply cost of 6

  • Cannot target Air

Upgrades

Overwatch Refit

Doubles cargo capacity and the range bonus granted to garrisoned units.

View Overwatch Refit in the Library

Author Rating: S

Best Use: Strider-Bastion, Strider-Sentinel and Strider-Merc Builds

  • God-tier all-round upgrade

  • Best used when filling Striders with Bastions or Valkaru Flame Walkers

H-7M5 Mega Railgun Cannon

Adds a 250-damage artillery Railgun with a 1.2-second firing rate. The Strider must be sieged and can only target ground.

View H-7M5 Mega Railgun Cannon in the Library

Author Rating: A

Best Use: Strider-Commando Builds

  • Long but relatively small cone of fire

  • Roughly 1.3 seconds to change angle of fire

  • Melts enemies; Good tool to rush for

  • Can, and often does, out-range the units garrisoned inside the Strider

  • Can only target ground

Skydock - 100 Hexite , 50 Flux Cost

  • Requires a Barrack

  • If utilizing Skydock Units, construct 3-6 Skydocks as the game progresses for fast production

  • Upgrades for units produced by the Skydock are researched at the Mechanical Research Lab

  • Take care when assigning rally points. Flying units may stumble into enemy camps while automatically traveling to them.

Ironwing

Ironwing

Protectorate Co-Op T2 Army Unit

Combat aircraft.

Author Rating: A

Roles: Ranged, Anti-Medium, DPS, Flying

Synergies: Commando, Bastion, Predator, Strider, Griffin

  • Solid DPS, HP and Range

  • Works Best with Stutter-Stepping

  • Vulnerable to AoE

  • Affordable; Horribly long training time

  • +50% Damage to Medium

  • Can target Air

Ability

Sunder MissileSpell

Launch a rocket that deals 25 area damage, reduces armor by 2, and slows enemies hit by -50% for 4 seconds.

View Sunder Missile in the Library
  • Fast Projectile Speed; Okay Damage

  • Very powerful in high numbers

  • Very poor auto-casting; Misses often

Upgrades

Reinforced Matrix

Adds 200 shields that regenerate outside combat.

View Reinforced Matrix in the Library

Author Rating: B-

Best Use: Ironwing-Griffin Builds

  • It is more efficient to utilize a ground tank unit however

  • Shields increase with Veterancy.

  • Shields do not benefit from Armor or bonus HP regeneration

Marious Laser Targeting

+3 attack range

View Marious Laser Targeting in the Library

Author Rating: A

Best Use: Any Ironwing Build

  • Excellent all-round upgrade

Sunder Missile

Adds an AoE missile that deals 50 damage, reduces armor by 3, and slows by 50% for 4 seconds. 15-second cooldown.

View Sunder Missile in the Library

Author Rating: C

Best Use: Any Ironwing Build

  • Auto-casted; Cannot be targeted

  • Misses 9/10 shots

  • Not worth getting

Griffin

Griffin

Protectorate Co-Op T3 Army Unit

Repairs friendly vehicles, can cast EMP.

Author Rating: A-

Roles: Ranged, Support, Healer, Flying, Detector, +Crowd Control, +Caster

Synergies: Every Unit

  • Expensive Support Unit ; Can Heal Mechanical Units

  • Great Heal DPS (50 at Vet3; Two Heal Beams + Vet3 Drone)

  • Can heal while moving

  • Only one Griffin/Building/Vet3 Healing Beam can heal an unit at a time

  • Healing Speed is increased by Attack Speed Boosting Effects (Rally)

  • Fragile & Poor DPS

  • Requires a Mechanical Research Lab

  • Can target Air

Ability

EMPSpell

Drain 50 energy and shields, knocks back and breifly slow enemy units

View EMP in the Library
  • With good army micro, this can trivialize attack waves

  • Long cooldown means only one use per fight

Upgrades

View EMP in the Library

Author Rating: A

Best Use: Any Griffin Build

  • The only choice

Bio-Matrix

Allows the Griffin to heal biological units.

View Bio-Matrix in the Library

Author Rating: C

Best Use: Griffin-Bio Build

  • EMP is a far-better ability and Aster's front-line benefits more from being Mechanical

  • Griffin Heal Drone (Vet3) can still heal Biological ; Deprecates Upgrade

  • More useful for your allies than yourself

  • Keep in mind healing Biological units also means there will be more targets that can distract a Griffin's healing

View Service Relay in the Library

Author Rating: S Best Use: Any Griffin Build

  • Must-get upgrade