The legacy of Buran/Energia lives on in the most powerful operational rocket engines ever created, the RD-170 family. There were four of these engines, each in one of the Buran boosters. One engine has four chambers. The RD-171 derivative is still used in Zenit launched from Russia and from a sea platform by Sea Launch, and the RD-180 derivative which is basically a half engine with two chambers, is used in the American Atlas V.
No other country has replicated the oxidizer rich staged combustion used in these high thrust efficient lox-kerosene engines. The materials technology is especially challenging because of the high temperature oxidizing gases in the turbine. For example SpaceX's Merlin gas generator engines look decidedly fifties compared to these.
The RD-0120 hydrogen engines on the base of the hydrogen tank were quite a feat as well, a Russian SSME. That technology was abandoned. The European Space Agency did some tests with RD-0120 back in the day.
(The article got the name of the booster engines wrong.)
No other country has replicated the oxidizer rich staged combustion used in these high thrust efficient lox-kerosene engines. The materials technology is especially challenging because of the high temperature oxidizing gases in the turbine. For example SpaceX's Merlin gas generator engines look decidedly fifties compared to these.
The RD-0120 hydrogen engines on the base of the hydrogen tank were quite a feat as well, a Russian SSME. That technology was abandoned. The European Space Agency did some tests with RD-0120 back in the day.
(The article got the name of the booster engines wrong.)