The most powerful tank to see service in the Rhunnish Empire. No other main battle tank could stand up its firepower, and few fortifications stood long against the 250-mm main gun. However, following the Empire's collapse, all 500 of these steam-powered, 700-tonne titans simply sat for about 60 years, most of them not being maintained at all. Because supporting steam-powered tanks, especially of this size, was a logistical nightmare, the SRA did not bother to refurbish and re-use the JN-129, favouring much smaller tanks. After all, 14 IS-2's or 26 T-34's could be built with 700 tonnes of steel.
Note: the engraving on the bottom reads "Rhunnish Imperial self-propelled fortress JeN-129" and my name.