What did the Communists offer the Russian people?

Communism offered the Russian people a different, more equitable way of life than they had under the Romanov regime. There was a great famine in Russia during the latter part of the Czar's rule. A great many Russian soldiers had been killed in WWI. The Russian people had nowhere to go but up once the Czar was removed and the Communists established a government. Initially, western nations tended to think that the Revolution of 1917 was a good thing and would bring something like democracy to Russia. Russia was one of the Allies of World War II. But it became obvious during at end of the war that Stalin had designs on all of Eastern Europe. With an aggressive neighbor like Russia at their doorstep, countries in Western Europe were understandably uneasy. Eventually, as Stalin's ruthless dictatorship was established, the West completely lost any notions of friendship with what had become the Soviet Union.

The Bolshevik slogan was "land, bread, and peace" That essentially covered their platform before they seized power during WWI, and those three things were all the Russian people wanted at the time.

The tsar abdicated to a provisional government, patterned on the western democracies and committed to continuing the war against Germany. Lenin came to power with the help of the Germans, and soon after assuming power withdrew Russia from the war. That freed up millions of German soldiers to concentrate on the Western Front, and from that point onward the Allies were convinced Bolshevism was not to be trusted (its anti-capitalist rhetoric aside)

Peace

bread

land

in that order.

Russians were desperate to end the country's involvement in WW1,and this would allow food production and the transportation infrastructure to recover and begin supplying the cities with food again.

Land ownership was offered to gain support of the peasants,who comprised the vast majority of the Russian population.