StillWorking

⚠️ Nuclear & Safety (the headline)

• Cooling Tower — place it next to the reactor and it pulls heat out of the core even while burning. One tower nearly cancels the heat rise; two keep the core comfortably cool and let the reactor run forever without melting.
• Meltdown — an uncooled reactor at max heat now accumulates MELTDOWN % instead of safety-shutting-down. The GUI warns you in real time: CAUTION - MELTDOWN xx%.
• Explosions — when the meltdown timer runs out the reactor explodes: it blasts the area, destroys itself, and scatters radiation fire everywhere.
• Radiation — a hot reactor radiates: living things nearby get the green Radiation effect, which damages over time. Radiation Fire burns where a meltdown happened and radiates anything that walks in it.
• Radiation Fire + Sand — throw sand on the flames (right-click) to smother them; it consumes the sand. A shovel and a sand stack are now mandatory reactor-adjacent equipment.

🎖️ Advancements

• 26 advancements for every craftable block and ore — a full progression tree from Machine Age to Critical Mass (the reactor challenge), on both loaders.

🎨 Visual variety

• Every machine now has its own distinct side/top texture instead of sharing one generic machine skin — generator, crusher, furnace, alloy mixer, reactor, cooling tower and the batteries all read differently at a glance.

📖 The Manual — full rework

• Reorganized by category with clean part badges: Getting Started · Power & Energy · Machines · Nuclear & Safety · Reference · Classified.
• New nuclear-safety pages: Cooling Towers, Meltdown & Explosions, Radiation & Fire.
• New Classified pages — leaked memos teasing what's next.
• Now 18 pages, refresh marker v4 — upgrading players get the new edition exactly once, then their edits are preserved.

🏷️ BETA rename

• Version bumped to 0.4.0, title updated to "SteelWorks Beta 0.4" with a BETA badge on the manual cover and mods.toml on both loaders.

🔧 Config

• Every new number is config-driven (steelworks-common.toml): meltdown timer, cooling per tower, explosion radius, radiation damage and range, sand smothering.

✅ Verified

• 19/19 game tests pass on both loaders — new tests cover: a cooled reactor never melts down, an uncooled reactor melts down and explodes, and sand smothers radiation fire.