Steam sells up to 4 times cheaper to people who live in certain poorer regions, and this also gets the usual discount. So some old game sold for $10, might get a 75% winter sales discount, plus a further 75% off in poor countries, down to about 60 cents.

It's clever because it takes purchasing power into account. So a game that's about 1 hour salary in the US would cost about 1 hour on a Indonesian salary as well.

This is going to be really hard for many competitors to match.