Alex Shen's latest project is 'an action/adventure game for the visually impaired / blind' called Cadet 227. He used Kickstarter to fund the idea, and now it's underway. The idea is to create a gaming experience which relies solely on sound with no visuals at all.

Yes, the idea has been done before, but Alex is going to great lengths to make Cadet 227 especially powerful stuff for blind gamers, researching ideas and gathering information from various sources - you can follow his work via a developer diary.

Expected to be released in the Summer, the game will be available as donationware.