It seems as every g2a.com site wont allow me to enter. Source: 10 months ago

And if you don't know how to build by yourself, you can also pay those shops to do it for you. It might be around 10-15 rial without windows, and I advice you to buy windows key in g2a.com. Source: 11 months ago

It's either what you suggest or buying them in websites like g2a.com, recharge.com, etc. Source: 12 months ago

Don't forget to add Windows to the list, you can find it pretty cheap on g2a.com, it's a key reseller, only ~$25 bucks for a copy of windows vs $100+ retail. Source: 12 months ago

I am really poor like so poor that saving up 5.50 euroes was smthn, so I take my money and go to g2a.com only to accidentally click on the wrong card and buy a steam TL currency gift card. I'm so sad that now I won't be able to get those 5 euroes to my acc it will take at least a week for me to re-save up. Source: 12 months ago

Have you looked at Pasjans? I don't know if you care about proprietary, but I don't know whether or not it is FOSS. Source: over 2 years ago