Some time ago, Valve announced that Steam Greenlight is to be replaced by Steam Direct, which will allow direct publishing to the platform without a community vote. Initially, the fee for this service was not announced but suggested to be somewhere in the range of $100-5000.
In a blog post, it was announced that this fee will be the minimum amount of $100, which will be fully refunded for games earning $1000 or more. The minimal fee provides a low barrier to entry for beginning or less established developers, whilst it is hoped that the possible refund will encourage higher quality games.
The post also announces further updates to the Steam Store to aid in discovery and curation of the best quality games and promises that an upcoming post will explain the process for shutting down Steam Greenlight.