President Vladimir Putin has ordered over a dozen regiments to finish upgrading their Topol missile systems this year, among other military updates.
Vladimir Putin said the RS-28 Sarmat has no range limits and "is untroubled by even the most advanced missile defense systems."
Russia's so-called Satan missile has been shrouded in propaganda and secrecy, but Putin made it the centerpiece of his last state address.
Putin spent well over half an hour talking about futuristic Russian weapons but some noticed the footage they were shown was quite old.
Moscow claims upgraded military kit can now "guarantee" striking potential foes, even if they have missile defenses.
The RS-24 Yars flew more than 3,000 miles starting in western Russia and according to the country's Ministry of Defense, confirmed its "reliability."