Recommendations are based on role, cost, coverage, and reliability. A tower can move up or down in practice depending on ammunition, map geometry, enemy composition, power supply, and whether the map uses custom rules.
Fast answer
The answer before the background
For most Serpulo campaign maps, build Duo and Scatter first, add Hail or Salvo for ground pressure, then transition to Cyclone, Spectre, Meltdown, and Foreshadow as resources allow. Use Mono and Poly for repair and construction, and use offensive units when they can reach enemy production or attack from a direction your wall cannot cover. On Erekir, prioritize Breach for sustained ground defense, Sublimate against clustered targets, Lustre for priority armored targets, and Afflict or Malign only after your heat, power, and resource systems are stable. The best setup is a layered composition, not a single tower.
Quick ranking
The practical tower tier list
The following ranking is for normal campaign and custom survival play, where dependable coverage matters more than a perfect damage-per-second test. S-tier means the block remains useful across many situations; A-tier means it is excellent when its matchup or resource requirement is satisfied.
On Serpulo, the most broadly useful late-game defenses are Spectre for sustained mixed-target fire, Meltdown for dense ground pushes, Foreshadow for long-range priority targets, and Segment for intercepting dangerous projectiles. Cyclone is one of the best bridges from mid-game to late-game because it handles both ground and air when supplied with suitable ammunition.
On Erekir, Breach is the safest general-purpose foundation because it can keep firing as enemies approach. Sublimate is strong against groups that enter its range, Lustre is valuable against durable single targets, and Afflict provides powerful area damage once your heat and power economy can support it. Malign and Smite are high-investment choices for mature bases rather than first defenses.
- Use Duo, Scorch, or Hail when you need a cheap answer immediately.
- Use Scatter when air units are the immediate threat, but do not rely on it as your only ground defense.
- Use Ripple, Fuse, or Salvo when terrain creates a predictable ground route.
- Use long-range or specialized towers only after walls, ammunition, and power are reliable.
| Role | Serpulo recommendation | Erekir recommendation |
|---|---|---|
| Cheap opening defense | Duo with copper or Hail where enemies follow a clear lane. | Breach after its required resources are available; use the cheapest available option before then. |
| Air defense | Scatter for early waves, then Cyclone or Spectre for broader coverage. | Disperse for dedicated anti-air coverage, supported by general-purpose defenses. |
| Heavy ground targets | Meltdown for sustained damage and Foreshadow for long-range priority shots. | Lustre for focused damage, followed by Afflict, Smite, or Malign when the economy supports them. |
| Projectile protection | Segment is the strongest specialist choice when its interception behavior matches the threat. | Erekir defenses should usually combine walls, range, and unit pressure because tower roles differ from Serpulo. |
The official v8 releases include balance changes, new Erekir ammunition, and map-level data patches. A numerical ranking can therefore become misleading when a map changes recipes, stats, or available research.
Serpulo
Best choices by progression
In the opening sectors, place Duo near the core and put Hail on the longest straight approach. Duo is inexpensive and easy to feed, while Hail rewards predictable lanes. Add Scatter as soon as air units become a realistic threat, and give it a dedicated supply line so ground combat cannot starve it of ammunition.
During the mid-game, Salvo is a strong answer when you can maintain graphite or another suitable ammunition supply. Ripple is better when enemies approach in a lane and you need splash damage at distance. Fuse is especially useful at choke points, where its close-range area damage can hit several large units, but it should not replace long-range coverage on open maps.
In the late game, use layers instead of stacking one tower type. Spectre gives reliable mixed-target damage, Meltdown punishes dense ground groups when supplied with coolant, and Foreshadow reaches priority targets from far away. Segment is a defensive specialist that can reduce the danger from selected projectiles, but it does not replace ordinary damage towers.
- On Ground Zero or other early sectors, prioritize cheap coverage and ammunition logistics over maximum damage.
- On maps with narrow ground lanes, combine Hail or Ripple with a wall corner and one close-range tower.
- On open maps, extend range with Foreshadow and protect the flanks with Cyclone or Spectre.
- On water-heavy maps, consider Wave or Tsunami when liquid supply is easier than large ammunition production.
Erekir
Best Erekir towers and units
Erekir rewards resource planning more heavily than Serpulo. Enemy pressure is tied to production and siege behavior, so destroying or containing enemy unit factories can matter as much as surviving a wave timer. Keep defenses close to useful walls, doors, and terrain, and reserve expensive heat-based towers for a stable power network.
Breach is the safest starting point for a conventional ground line. Sublimate is a strong short-range answer to groups, but it needs enemies to enter its effective area. Lustre is the focused option for priority targets and is most valuable when protected from being overwhelmed. Afflict, Smite, and Malign can decide late encounters, but they demand a mature supply chain and should not be placed before basic coverage is complete.
Erekir units are especially important on attack maps and in spaces where static towers cannot cover every approach. Use early tanks to hold or pressure a route, support units to repair and construct when available, and higher-tier units to destroy enemy production or cores. This is a recommendation based on Erekir's campaign structure, not a claim that one unit wins every matchup.
- On early Erekir sectors, secure heat, power, and silicon-like production requirements before expanding the turret line.
- Against clustered ground units, combine Breach with Sublimate rather than building only one tower.
- Against durable targets, use Lustre or a higher-tier tower while cheaper defenses handle weaker enemies.
- On attack maps, produce units early enough to scout and remove enemy fabricators instead of waiting for the base to become surrounded.
Erekir and Serpulo use separate technology trees and have different resources, units, and defensive priorities. A Serpulo ranking should not be copied directly into an Erekir campaign.
Modes and maps
What to build for each situation
For survival maps, the priority is repeatable defense: a wall line, reliable ammunition, anti-air coverage, and enough power or liquids to keep key towers firing. Pick towers that match the path rather than chasing the highest displayed damage. A cheaper tower that never runs dry is usually better than an expensive tower that fires only during the first few waves.
For attack maps, units move up the ranking because they can scout, absorb fire, reach side entrances, and destroy production. Keep a defensive core of towers behind walls, then use commanded units to open a route. Repair-capable or construction-capable units are valuable even when their direct damage is modest.
For multiplayer and PvP, no universal tier list is reliable. Human opponents can change their ammunition, attack angle, unit mix, and timing. Favor flexible coverage, protected production, and units that can threaten infrastructure. In co-op, divide roles so one player handles ammunition and power while another expands walls, repairs, or leads the attack.
- Choose Hail, Ripple, or similar lane defenses when terrain funnels enemies.
- Choose Spectre, Cyclone, or broad mixed coverage when approaches are split.
- Choose dedicated anti-air towers when the map has exposed power, drills, or core infrastructure.
- Choose mobile units when the objective requires scouting, raiding, building, or attacking multiple cores.
Execution
A reliable build order
First, identify the enemy route and the resource that keeps your first tower firing. Place the core defense where it covers the most important approach, then add walls without creating a dead end for your own construction and repair units.
Second, separate ammunition lines when air and ground threats need different materials. A fully supplied general-purpose tower is more valuable than several empty towers. Add power, liquid, and repair support before upgrading to a high-cost weapon.
Third, test the defense against the map's actual threat. If ground units reach the wall, add range or splash damage. If air units bypass the line, add dedicated anti-air. If large targets survive, add focused damage rather than simply building more cheap single-target towers.
Finally, attack the enemy economy when the map allows it. A small group of appropriate units can remove a fabricator, power source, or core approach that would require a large static defense to withstand.
- Keep at least one emergency defense route around the core instead of committing every tower to the front wall.
- Place repair and construction units where they can reach damaged structures without crossing the entire base.
- Upgrade ammunition and cooling before judging a tower as weak.
- Recheck the in-game database after updates because stats and recipes can change.
FAQ
Common questions
What is the best tower overall?
There is no universal winner. Spectre is one of the most flexible Serpulo late-game choices, while Breach is a strong Erekir foundation. Both still need the right ammunition, support, and map position.
Are units better than towers?
Units are better when mobility, scouting, repairs, construction, or attacks on enemy production matter. Towers are better for dependable local defense and do not require command attention. Strong bases use both.
What is the best Erekir unit tier list approach?
Rank units by job instead of only by tier. Early tanks can hold ground, support units can preserve infrastructure, and higher-tier units are most valuable when they can survive long enough to attack production or cores.
Which tower should I use against bosses?
Use focused, long-range damage such as Foreshadow on Serpulo or Lustre and stronger Erekir options when unlocked. Support them with ordinary towers so the focused weapon is not distracted by weaker targets.
Why does my high-tier tower perform badly?
High-tier towers often fail because of poor ammunition supply, insufficient power or coolant, bad target access, or a mismatch with the enemy. Check logistics and placement before replacing the tower.
Sources
What we checked
Official listings establish current availability and product facts. Community pages are used for mechanics and build history, then labeled separately.