Worth to know

http://www.bfilipek.com/

My mentor’s site filled with valuable information regarding programming and graphics.

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http://nerfbuff.com/

Blog of Michał “Ragis” Król – great designer and my friend. He has a deep insight into game design and gamedev industry.

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http://kotaku.com/

Source of many gaming- and culture-related information. Worth reading on a daily basis.

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http://gamasutra.com/

A real mine of game development industry information. A must-read regularly.

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http://www.codeproject.com/
http://stackoverflow.com/

If you’re stuck with any programming problem – you’re going to find a solution there.

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https://gamediscoverability.substack.com/

Great analysis about sales, marketing and discoverability of games.