K2SO Arsenal

Special Thanks / Credits

K2SO Arsenal was built with help from the work of several Factorio mod authors and projects.

• Rampant Arsenal (Fork) by Dimm2101 (originally by veden)

Used as an important foundation and reference for several ammunition, projectile, and combat-effect implementations. Some work derived from Rampant Arsenal (Fork) is included and modified in K2SO Arsenal under the GPLv3 license.

• Hurricane for Armory graphics

The mods listed below were integrated directly into this mod during the transition to Factorio 2.1 because they had not been updated for a long time after the 2.1 release. If you are the author of any of these mods and would prefer your work not to be included, please let me know.

• Missile Defense Systems SA
• doeWorks Rocket Artillery
• Heavy Gun Turret
• Cannon Defense Systems

Main Features

• New high explosive, incendiary, poison, and uranium ammunition variants
• New rifle magazines, shotgun shells, anti-materiel magazines, cannon shells, rockets, railgun shells, and artillery shells
• Napalm-based incendiary weapon progression
• Poison clouds and toxic artillery effects
• Shotgun turret and light railgun turret progression
• Rebalanced cannon, missile, rocket, laser artillery, heavy gun, and selected vehicle/turret content
• Concrete, refined concrete, black reinforced, and white reinforced walls and gates

Dependencies & Integrations

K2SO Arsenal is built around Krastorio 2 Spaced Out and Space Age combat progression.

The required combat dependencies are included to expand the player's defensive and offensive options, especially during the mid and late game. The goal is to add more variety against stronger enemy pressure without relying on a single best turret, shell, or ammo line.

Core Dependency

• Krastorio 2 Spaced Out

The main balance target for this mod. K2SO Arsenal follows K2SO's military pacing, science tiers, and late-game combat expectations.

Several K2SO and Space Age combat options receive optional balance adjustments, you can turn them off in startup settings:

• K2SO Rocket Turret: adjusted into a stronger long-range rocket defense option.
• K2SO Laser Artillery Turret: improved durability and stronger area impact.
• K2SO Light Railgun Turret / Railgun Shells: moved into a K2SO-style progression and normalized to scale through regular projectile damage and shooting speed upgrades.
• K2SO Advanced Tank: minor defensive buffs against laser, electric, and poison damage.
• Space Age Rocket Turret: adjusted health, range, firing speed, and damage modifier to better fit a heavier K2SO combat environment.

Optional Integrations

• AAI Vehicles: Chaingunner

If installed, K2SO Arsenal adjusts the Chaingunner's health and resistances so it survives more consistently in K2SO-style combat.

• AAI Programmable Vehicles

If installed together with AAI Vehicles: Chaingunner, matching programmable vehicle variants are patched as well.

Recommended Mods

• Rampant Fixed

The main enemy overhaul this mod was balanced around. Recommended if you want enemy pressure to remain relevant throughout the game.

• Fulgoran Enemies

Adds dangerous enemies to Fulgora, which can also be controlled by Rampant Fixed for a more challenging planetary combat experience.

• Advanced Target Priorities

Allows more detailed turret targeting priorities, which is especially useful when using a larger variety of defensive weapons.

• Artillery Bombardment Remote

Makes late-game artillery control easier and more convenient.

• Rainbow Lasers

Not required for balance, but why not, lol.

Important Note

K2SO Arsenal is my first larger Factorio mod project. I have tested it in a coop playthrough and have not encountered any major issues, but if you run into a problem, feel free to report it in the discussion section with as much detail as possible, including your mod list and the error message if there is one.

This mod was developed with AI assistance. If AI-assisted development is a deal-breaker for you, please simply avoid using this mod.