Trilarion: Nobody but the powers to be know. Yes, the GDP in purchase power parity and per person is marginally higher for Poland than for Russia (
https://en.wikipedia.org/wiki/List_of_countries_by_GDP_%28PPP%29_per_capita) but in general I estimate that the regional prices on GOG do only very, very loosely correlate with regional income if at all.
Old data is old. It's now like three times less. Also, median income is a factor. (Minimum wage is $80/month, and skilled professionals don't fare better -- we just hired a paralegal for $300/month, in Moscow [think "homophobic San Fran"]).
Still no reason for so rickoculous a discount for an AAA game -- people who have PCs capable of running it, generally speaking, can pay the US price with pocket money.
Trilarion: Especially funny it gets, when you are in the Russian region and there is a sale of a classic game on GOG. It feels like they give away their games for almost nothing.
This. I stopped using Steam before they implemented regional pricing, and I bought most of my GOG collection in flat price times, so every -75% sale is a laugh riot. Premium games such as Deponia go for $0.40. A
sip of coffee costs more.
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As for historical reasons of the Russian Discount, I think the language might be a factor. Most Russians can't English, and the poorer one is, the less likely they are to understand* English (and, as a bonus, the less likely they are to know how to pirate games, although the correlation isn't as sharp as it used to be). Another factor is of course the Iron Curtain. Historically, Russian gamers were kids. For a localization to be commercially viable, it should sell a lot
to lower-class kids. As a bonus, Russian-only physical discs were practically useless for cross-regional resale. When Steam swallowed up retail sales, it got poisoned by regional pricing.
*To illustrate: EA Origin hadn't been offering the English interface for Russia for at least 5 years. Now it does,
but the currency changes from Russian roubles to Swedish kronor.
Also, "piracy" without explanation is just wrong -- these days we understand piracy as getting something for free on the internets. People -- kids -- didn't have internets ($150/month outside of metropolitan areas) to download games or game cracks, and CD-RW drives were expensive. There was a thriving bootleg industry, and gamers bought bootleg discs from local "publishers" without knowing the difference.