Granite

Lore & Background

In the geological record of the ONI cross-section, Granite occupies the upper strata alongside other common rock types. It sits in the layers that Duplicants reach within their first few hours of play, making it the material most associated with the colony's earliest days of construction and expansion. Where Sand is loose and Clay is soft, Granite presents as a firm, interlocking crystalline matrix that holds its shape under pressure, which is why it features so prominently in structural applications.

Colonists quickly learn to read the cross-section's color and texture cues: the mottled grey-and-pink flecks of Granite stand out against the smoother tones of surrounding rock. Experienced Duplicants plan their drill paths around Granite veins, saving the material for walls, floors, and crafting inputs rather than letting it go to waste. In the broader colony economy, Granite is the low-risk, high-availability resource that keeps production lines running when more volatile materials like oil or gas are in short supply.

Fans often describe the early Granite-mining phase as the 'trench-digging' era of a colony, a period when the cross-section is still mostly empty and every chunk of solid material counts. It is humble, unglamorous, and absolutely essential.

In Their Own Story

The drill bit ground against the speckled face of the rock, and a small cloud of grey dust puffed out into the recycled air. Kira wiped her brow with the back of a grease-stained glove and watched the next chunk of Granite drop into the collection bin with a dull thud. Three more. Four. The hum of the drill vibrated through the soles of her boots.

Above, the colony was quiet. The oxygen scrubbers ticked their steady rhythm, and somewhere down in the processing bay, a batch of building blocks was slowly taking shape from the very material she was pulling out of the ground. She didn't need to look up to know the walls of the new storage room were waiting. They always were. Granite didn't ask for much—just a drill, a bin, and a Duplicant willing to stand in the dust and count chunks until the shift ended. She set the next bit, pressed the lever, and let the planet give up one more piece of itself.

Reader's Guide

Position in the cross-section: Granite appears predominantly in the upper layers of the map, spanning the Surface biome and the topmost bands of the Cave biome. It is typically found in the first several rows of solid terrain that Duplicants encounter, making it one of the most immediately accessible mineral resources.

Physical properties: Granite is a solid, non-combustible material. It does not emit or absorb gas, does not generate heat, and is unaffected by most temperature extremes encountered in the upper cross-section. As a solid, it occupies storage space in solid bins and can be transported by Duplicants or conveyance systems.

Yield and processing: When mined with a drill, Granite drops as solid chunks. These chunks can be stored, transported, and fed into crafting stations to produce finished building blocks and other manufactured items. It is a straightforward input material with no multi-stage refining required.

Hazards to Duplicants: Granite poses minimal direct danger. The primary risk is the standard drill operation—dust generation and the time investment of manual mining. There are no toxic off-gassing, explosive, or extreme-temperature hazards associated with the material itself. The main practical concern is opportunity cost: time spent mining Granite is time not spent on higher-value resources, so efficient drill placement matters.

Practical tip: Because Granite is so common in the upper layers, it is ideal for bulk structural work. Reserve more exotic materials for specialized applications and let Granite do the heavy lifting for floors, walls, and basic infrastructure.

Did You Know?

• Granite is one of several distinct rock types in the cross-section, visually differentiated from Sand, Clay, Limestone, and plain Rock by its characteristic speckled texture.
• Because it is a solid, non-reactive material, Granite chunks can be stored indefinitely in solid storage without degrading, generating gas, or posing a fire risk.
• Granite's abundance in the upper cross-section makes it the default material for early-game construction, often forming the first permanent structures a colony builds.
• The mottled grey-and-pink visual pattern of Granite tiles is one of the most recognizable textures in the game, helping players quickly identify it among other rock types.