There are many books (and magazine articles) written about these. While I don't have a directly useful list, one source I can recommend is Humble Bundle (humbl

There are many books (and magazine articles) written about these. While I don't have a directly useful list, one source I can recommend is Humble Bundle (humblebundle.com), which also runs book bundle sales (where sometimes the topic is gaming). I've seen it have some game related book bundles over the years. Another site to keep an eye on is Story Bundle (storybundle.com), which is somewhat similar to Humble Bundle, but focuses only on books. Unfortunately, the bundles on these sites are always available only for a limited time. You can see past Humble Bundle books at https://www.goodreads.com/list/tag/humble-bundle https://www.goodreads.com/list/tag/humble-bundle You can see past Story Bundle books at https://storybundle.com/archive https://storybundle.com/archive