This mod adds chemistry to KSP by adding a lot of compounds, all periodic table elements, hundreds of alloys, and many other chemical (and not very chemical) resources to the game! Scroll all the way down to see the current resource counts.

It also has some very unique features, including but not limited to:

• A resource and recipe library that automatically fetches data on every single currently loaded resource! Extremely useful if you want to understand processing chains and how to make something. It is inspired by the NEI mod for Minecraft.
• EVA items that can move resources around different vessels! You no longer need to deal with KSP glitchiness to transfer a resource, just EVA a kerbal and move it manually!
• Degrading batteries that will become useless after some time! They will slowly degrade to zero capacity over the course of their life, however there are some batteries that are advanced enough to last years or even forever!
• Advanced storage containers that can charge, consume somthing to function, explode if things inside are not contained, store multiple types of resources at the same time using a shared volume, and have maximum transfer speeds to simulate real world logistics!
• Complex processing lines that require deep understanding of the mod and its machines, making it a similar challenge to GregTech: New Horizons, Factorio, and Satisfactory!

Khemistry Construction Overhaul

An addon for Khemistry, this mod overhauls VAB construction to require resources! This mod must be installed with Khemistry and makes it play a bigger role than just more complicated ISRU processes. This mod is currently in development and including it as of now (08/10/2026 7:41 PM EST) will make some parts impossible to construct due to various required resources being impossible to obtain or even hold.

Known Issues:

• Far Future Technologies does not work properly with the mod in many ways.
• Far Future Technologies replaces one of Khemistry patches and it is fixed by making one of the tanks forced to hold Uranium Oxide Powder and not have multiple variants, which could be problematic for some people.
• Near Future Electrical will not allow KSP to load unless the Legacy folder is deleted.
• Near Future Construction causes a fatal B9 Part Switch error "Ore tank is not found!" which is caused by a mod overwriting Khemistry's patches. It will be fixed soon.
• Solid Fuel isn't replaced by any Khemistry resource yet.
• Kerbalism is expected to be extremely glitchy but have not yet been tested.

Dependencies:

• ModuleManager (Khermistry will do nothing without this mod)
• Community Resource Pack (Khemistry removes most of its resources for now but it is vital for the mod's functionality)
• Kopernicus (used to add custom ores for all planets, mod may break without it)
• B9 Part Switch (used to assign the custom per planet ores to cargo tanks, mod may break without it)
• SystemHeat (used for many things, many ISRU and drills will become unusable)
• CustomPrelaunchChecks (used for the KhemistryConstructionOverhaul addon so not strictly required for the base mod)
• Resourceful Technologies (my ISRU parts mod, Khemistry uses various parts from there)
• Far Future Technologies (while not strictly required and the game will work without it, its parts are used for progression)

Fully Supported Mods:

• Station Parts Expansion Redux (cargo parts can hold some planet-speciifc resources)
• Near Future Propulsion
• Near Future Construction (patches from this mod have full support)
• Near Future Electrical (parts and patches from this mod have full support, even deprecated ones. May have some problems with reactor core lifetime calculations. IMPORTANT: The "Legacy" folder inside the mod needs to be deleted in order for the game to finish loading!)
• CryoTanks
• SpaceDust (used to create resource belts around planets and atmosphere resources)
• Kerbalism (this thing is kind of insane, I don't know if Khemistry even works properly with it)

Configurable Per-Version Support:

• Promised Worlds Debdeb (1.2.1)
• Promised Worlds Tunn (1.2.1)

Full Support Using Procedural Patches

• Kerbal Atomics
• Near Future Exploration
• Near Future Aeronautics
• MkIVSystem
• Near Future Spacecraft
• Near Future Launch Vehicles
• Modular Fuel System
• Celestial Harmony (0.9.3)

Supported Mods:

• Real Solar System (switch from Kerbin resources to Earth resources and some other things)

Incompatible Mods:

These mods will be suported soon:

• ProceduralWings
• ProceduralFuelTanks
• Snacks
• USI Life Support
• Tac Life Support

Fully Supported Mods Without Support:

These mods are confirmed to work flawlessly with Khemistry and need no patches to be compatible.

• Near Future Solar
• Near Future Props
• Heat Control
• System Heat
• Radioactivity
• Deployable Engines
• Dynamic Battery Storage
• Waterfall
• Waterfall Restock
• Community Tech Tree
• Universal Storage 2
• Ferram Aerospace Research (FAR)
• Connected Living Space (CLS)

Current Resource Counts:

(As of 08/10/2026, 7:41 PM EST)

• 234x Alloys

• ULV-MAX Circuits

• 6x Composite Material

• 71x Construction Resources

• 25x Electric Resources (All GT tiers + additional MAX voltages, ULV through MAX+10)

• 1x Electronium Resource (temporary, used for Oprissmian's TheFiveEchoes mod)

• 702x EPDM polymers (will be replaced with a material)

• 3x Fuel Assemblies

• 3x Fuel Pellets

• 4x Fuel Resources

• 3x Fuel Rods

• 45x Impure Resource

• 18x Isotopes

• 81x Natural Resources

• 76x Not So Procedural Resources (these resources will be replaced by procedural generation)

• All Periodic Table Elements

• 5x Ores

• 75x Other Resources

• 3x Powders

• 58x SandLine-related Resources

• 7x "Snack"s

• 2x Deposit types

• 2x Material types

• 5x SpaceDust bands

• 4x Cooling recipes

• 3x Electrolysis recipes

• 2x Furnace recipes

• 4x Gravitational Collapser recipes

• 5x Gravitational Separator recipes

• 3x Mixer recipes

• 4x Name Converter recipes

• 2x Metallurgical Roasting recipes

• 30x Transformer recipes