Polonium Dark puts you behind the lead glass of a sealed-source encapsulation line. Six orders per shift, six stages per unit: steer the remote manipulator to grab the glowing core without sway, seat double steel shells, ride the laser weld power and speed bands, pump the chamber for a helium leak check, swipe away contamination, then freeze the calibration needle on spec.
Watch dose rate and vacuum while you work. When the cell runs hot the line slows and payouts shrink. Spend credits in the workshop on six real upgrades: a steadier arm, a seam tracker, a helium spectrometer, tougher lead glass, an auto wipe machine and a second hot cell.
Every credit, part and record is saved. Seal tight, ship on spec.
Run a hot cell: seal radioactive sources, beat the clock, earn credits.