In the recent events that Io-Interactive announced its independent status a few days ago, the studio still holds all licensing and rights of the famous stealth action, Hitman. And along with this announcement is one nicely made trailer to compliment its news of Episode 1, including the ICA Facility level, going free across all platforms.
You can get go to http://www.hitman.com/free to get it!
This is actually a great move from Io Interactive. Making newcomers to fully try out the new reboot of the franchise, which helps them decide to whether get the game or not. This move is not entirely new, as publishers like Telltale Games did this exact same thing with their games.
If it also helps making your decision to get Hitman after trying Episode 1, you can check our review of each episode: