This game has been Greenlit by the Community!

The community has shown their interest in this game. Valve has reached out to this developer to start moving things toward release on Steam.

Private Infiltrator - Enhanced Edition
Desura Alpha Release
December 15, 2012 - Slack

We are happy to announce that Private Infiltrator is now available for purchase on the Desura platrofm.
http://www.desura.com/games/private-infiltrator
The game is currently in alpha and is still subject to change based on your feedback, so don't hesitate to contact us with anything that could help make this game better.
Until next time, the WEC administration team is wishing you a happy espionage-filled day.

PS: Aparrently, i am also dishing out updates at every second - adding more music, fixing more bugs, and sending out more boxes to kill you!
The Desura page also has the outdated DEMO PRELUDE of the game, which can show you a lot of the basics, but in a much older version! It's Free!