There were several Russian socialist parties in 1918. The main one was the Bolshevik Party, which renamed itself the Communist Party in March. There was also the Mensheviks, who were the remnants of the Russian Social Democratic Labor Party after the Bolsheviks left that party. There also was a party named the Social Revolutionaries.
Note that even though the Bolsheviks called themselves Communist, they were actually imposing a socialist, not a communist form of government at that time.
I don’t think there’s were any Socialists in Russia then. The Bolsheviks certainly didn’t stand for the abolition of the wages system and establishment of a classless society.
communists
The Russian Empire fell and Vladamir Lenin took control of it which lead to the birth of the Union of Soviet Socialists Republic.
Bolsheviks
Vladimir I. Lenin
Marx
Karl Marx and Friedrich Engels.
Russian battleship Tsesarevich ended in 1918.
Russian cruiser Bogatyr ended in 1918.
Russian yacht Standart ended in 1918.
Federation of Russian Canadians was created in 1918.
Tsar Nicholas II Romanov was executed by Lenin's forces in 1918. The Tsar was not executed during the Russian Revolution in 1917.
Grigori Rasputin.