Lore Guide: Serpulo & Erekir Origins, Spores, Arkycite

Mindustry lore describes the setting, materials, lifeforms, machines and historical events that form the backdrop of the game universe. It explains why planets differ, where strange materials and biota come from, and how the world changed after technological experiments and wars.

Planets and environment

Serpulo is a mostly Earth-like, purple-tinged world with an oxygenated atmosphere, day/night cycle, lakes and oceans, and extensive spore infestation. Vegetation is dominated by invasive Spore Pods that turned much of the planet into a purple, hostile biosphere. Serpulo contains abundant common ores such as copper, lead, coal, titanium and thorium, and surface water behaves as liquid water. Temperature gradients create warmer equatorial regions and colder poles.
Erekir is a hot, tidally locked, orange planet close to its star. Water instantly vaporizes there, pools of molten Slag and Arkycite dominate the surface, and steam vents and dense atmosphere make it suitable for exotic processes. Erekir’s ores (including beryllium, tungsten, gallium and others) often have higher melting points and unique chemistries; some liquids that exist on Serpulo instantly evaporate on Erekir. Erekir lacks a breathable oxygen atmosphere like Serpulo’s; oxygen must be produced on-site (for example as Ozone from water electrolysis).

Both Tantros (water-rich) and other minor worlds share varied biomes; map-level lore is often embedded in specific sectors.

History and major events

The “Seedling” incident: Spore Pods were developed in research facilities as a product or alternative to other biomass sources. A catastrophic release during facility destruction allowed Spore Pods to spread and dominate Serpulo, killing or outcompeting native vegetation and altering the atmosphere. Records in certain sectors (map log entries) reference failed launches, impacts and system shutdowns during this era.
Wars and conquest: Large-scale conflicts between factions stripped much technology from regions and forced survivors to rebuild at remote bases. The campaigns’ ruined facilities, derelict cores and scattered technology are remnants of these conflicts.

Synthetic lifeforms and biological oddities

Spore Pods: Fungal-like, aggressively invasive organisms engineered (or at least produced by human research) and now pervasive across Serpulo. They release toxic gases and reshape ecosystems.
Neoplasm (liquid and units): A fleshy, tumor-like fluid and associated worm-like units (Latum, Renale). Neoplasm appears synthetic or radiation-mutated; Phase Fabric and Arkycite are implicated in neoplasm synthesis within special reactors. Neoplasm is tied to Erekir’s biology/chemistry and used in specialized reactors.
Arkycite: An unusual orange-green substance on Erekir that behaves like a liquid and seems biologically active or organo-mineral. It is used in cyanogen synthesis and in reactors to produce exotic outputs; it may contain carbon and nitrogen and can be transformed by radioactivity into Neoplasm.

Materials, their flavor and implications

Common ores: Copper, lead, coal and graphite are abundant on Serpulo; titanium and thorium appear as higher-tier ores.
Beryllium: An Erekir resource, visually distinct and used in advanced tech and some unit factories. It shares hardness with titanium in-game and is essential for Erekir unit production lines.
Tungsten, Gallium, Thorium, Fissile Matter: High-tier, high-melting or radioactive materials with special uses (reactors, advanced weapons). Fissile Matter is the most radioactive item in the game’s item list.
Plastanium, Surge Alloy, Oxide, Carbide and other composite materials: Fictional alloys and compounds implied to combine metals, polymers and exotic processes; they are often tied to unique manufacturing chains and devices (e.g., Surge Alloy associated with high-electricity tech).
Pyratite: A highly flammable fictional mineral used as fuel or incendiary material; it intentionally evokes pyrite/pyra- naming and enables combustion-based generators and turrets.

Many in-game names and appearances intentionally echo real-world chemistry or materials (e.g., Electrolyzer, Ozone, Cyanogen) but are adapted for gameplay and narrative rather than strict scientific accuracy (electrolysis produces ozone in-game, gases have color coding, ratios are adjusted).

Technology, reactors and production lore

Electrolyzer and Atmospheric Concentrator: Devices that convert environmental inputs into gases (hydrogen, ozone, nitrogen). In-game depictions borrow from real-world processes like electrolysis and air separation but are tuned for gameplay.
Reactors and hazardous production: Neoplasia Reactors, Heat/Flux Reactors, and other power blocks are central to late-game production; they attract certain enemy spawns and may cause dangerous side effects (for example, Neoplasm buildup can cause catastrophic contamination events).
Thermoelectric / Differential generators: Several power-generating technologies in Mindustry draw on real-world principles (thermoelectric Seebeck effect analogies) but are stylized for the engine.

Factions, ruins and map storytelling

Many handcrafted sectors contain ruins, logs and environmental decals that reveal local stories: research stations, recorded logs of impacts, failed launches, or core crashes. These are used to convey the fall of prior civilizations, the hubris of experimentation (spore research, Arkycite/Phase Fabric use), and the scattered nature of surviving societies.
Teams and guardians: Map lore includes guardians (powerful units tied to sectors) and team colors (orange often denotes player protagonists; red, purple and others denote hostile or factional forces). Guardians and encounters often reflect the sector’s backstory.

Units, naming conventions and cultural flavor

Unit names often follow thematic conventions:
- Serpulo cores and early units use Greek letters (Alpha, Beta, Gamma).
- Many Erekir units are named after marine, entomological or celestial terms (Merui/Anthicus/Collaris for beetle-inspired lines; Omura, Bryde, Aegires, etc. for whale/sea names).
- Unit families hint at role or origin (Elude line as hovercrafts; Nova/Pulsar celestial naming).
Trivia and flavor text: Unit descriptions, achievements and block details frequently add in-jokes (e.g., the Router meme language, achievement references) and subtle worldbuilding.

Strange or notable gameplay-backed facts that inform lore

Many biological and chemical items are explicitly synthetic or mutated by human technology (Spore Pods created in a facility; Neoplasm linked to Phase Fabric radiation).
Some materials have been retconned or repurposed over development; historical text and sector logs reflect changes in technology and society within the game world.
Environmental hazards and tiles (Tar, Molten Slag, Cryofluid, Arkycite pools) impose status effects and imply planetary conditions (cold, heat, corrosive or radioactive environments).

Tone and intent of the world

The Mindustry universe is one of industrial expansion, experimentation and ecological consequence. Players encounter the detritus of past engineering—ruined facilities, invasive synthetic lifeforms and peculiar materials—and must repurpose or contain them. The game’s lore consistently mixes plausible scientific references (metals, electrolysis, thermoelectrics) with fictional substances and emergent phenomena to support both gameplay systems and a recurring theme: technological power reshaping worlds, sometimes catastrophically.