Developer / Publisher
Details and Conditions
From Tripwire's Policy on Gameplay and Related Videos:
"Except as noted below, Tripwire Interactive Content may only be used for NON-commercial use – i.e. you can’t use our content to make you richer, without our permission."
"Any and all videos created using Tripwire Interactive Content must be available to view by anyone, for free. Websites that charge users a “Premium Fee” to view videos can only be used where there is also a “Free” option to view the videos. In other words, users should not, under any circumstances, be forced to pay money to view the videos."
"The exception to this is websites that run “partner programs”, such as Youtube that allow you to monetize your videos without charging the viewers a fee."
"We are happy for anyone to use recorded video material from our games as long as the video is somehow related to the game(s) in question (e.g. review, preview, a Let’s Play, or some other similar type), is recorded at a decent resolution and credits the game."
See more details by clicking the "source" link below.