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Prompt Critical is a Minecraft 1.21.1 mod for NeoForge about an industrial complex that grows from a coal mine to a closed nuclear fuel cycle. Coal and steam, steel and power, oil and gas, chemistry and finally nuclear power, each industry feeding the next, and a control system the player designs and builds: relay cabinets, analog computers, PLCs and a SCADA on CC: Tweaked computers. Mechanics run through Create 6.
Warning
Pre-alpha. The project is at milestone M0: build skeleton, CI and placeholder art. Pages marked Design stage describe planned mechanics from the design document, not features you can play. See Roadmap.
| If you want to… | Read |
|---|---|
| understand what the mod is about | Overview and Design Pillars |
| see how a playthrough progresses | Progression |
| run the current build | Getting Started, Building from Source |
| know what comes when | Roadmap |
| get quick answers | FAQ |
| Page | Covers |
|---|---|
| Reactor Physics | thermal hydraulics, point kinetics, feedbacks, xenon and samarium, decay heat, control rods and scram |
| Nuclear Fuel Cycle | from prospecting to yellowcake, UF₆, centrifuge cascade, pellets, fuel assemblies, reprocessing and disposal |
| Radiation Safety | radiation field, shielding, dosimetry, contamination, decontamination |
| Accidents | LOCA, station blackout, ATWS, RIA, SGTR, hydrogen, core damage, event trees |
| Isotopes and RTG | irradiation channels, Co-60, Ir-192, Am-Be, Pu-238, RTGs, research reactors |
| Page | Covers |
|---|---|
| Coal and Metallurgy | coal mines, coke chemistry, iron and steel, non-ferrous metals, pipes, air separation, water treatment |
| Energy Grid | AC grid, generator synchronization, protection relays, load shedding, boilers, gas turbines, cooling towers, hydro |
| Oil and Gas | geology and exploration, drilling and well control, production, pipelines, refinery, gas processing |
| Petrochemistry | pyrolysis, polymers, chlor-alkali, syngas, methanol, resins and solvents |
| Page | Covers |
|---|---|
| Create Integration | coolant pumps and flywheels, rod drives, turbines, centrifuges, cranes, ventilation, Ponder |
| Automation Platform | automation ladder A0–A5: relays, analog computers, IEC 61131-3 PLCs, safety systems, fieldbuses, historian, digital twin |
| CC: Tweaked API |
pc_* peripherals, events, tag catalog, Lua examples |
| SCADA and HMI | control desks, monitors, the pcui library, alarm management, main and remote control rooms |
| Acoustics | sound and vibration diagnostics: cavitation, water hammer, bearing wear |
| Page | Covers |
|---|---|
| Operations and Safety | LOTO, work permits, confined spaces, shifts, flares, fire fighting, maintenance |
| Environment and Economy | emissions, acid rain, CO₂ quotas, oil spills, exchange and contracts |
| Multiplayer | damage budget, containment, server modes, anti-griefing, balance |
| Player Content | handbook, advancements, simulator scenarios, world structures, crafting tree, decor |
| Page | Covers |
|---|---|
| Architecture |
pc-sim / pc-api / pc-mod, domain vs. binding, threading, networking, testing |
| Building from Source | Gradle tasks, dev runs, CI, dependency versions |
| Art Pipeline | Blockbench sources, texture rules, preview sheets, asset build scripts |
Progress runs on two parallel ladders. Industry eras are unlocked by materials, not research points: you cannot build the next era without the products of the previous one.
| Era | Name | Typical reactor tier |
|---|---|---|
| I0 | Coal and steam | — |
| I1 | Steel and power | T0 graphite pile |
| I2 | Oil and gas | T1 |
| I3 | Chemistry | T2a / T2b, T3 |
| I4 | Nuclear | T3, T4 |
Automation levels grow with the plant: A0 manual → A1 relay logic → A2 analog computers → A3 PLC and safety instrumented systems → A4 DCS/SCADA on CC: Tweaked → A5 plant-level optimization. Details in Progression.
The wiki summarizes the project's game design document and technical specification, which is kept private. Section numbers such as "01 §1.8" on these pages refer to it. Names, units and numbers on the wiki follow the design document; if something here looks inconsistent, open an issue.