I watched the IGN Alien: Isolation webseries. I was disappointed. From what I could tell there wasn't much change from the cut scenes of the video game I watched years ago, though I read some new scenes were added to make it flow better, and I also heard on a You Tube review that the ending was changed. And the video game visuals don't hold up, especially for a webseries. I was more charitable when it was just cut scenes for a video game. The webseries looked and felt cheap to me, and I think it might piss off old fans instead of pleasing them, and also that I don't see how it does much to get new fans. The webseries format (several 10-13 minute episodes) made it harder to follow the story as well. The bright spots for me were the premise, the use of Amanda Ripley, some of the production designs, and the voice acting.
When I look at animated offerings from Star Wars, Marvel, and DC, or even the last Starship Troopers film, Traitor of Mars, there's just no excuse to put out an animated work of such poor quality. I've seen a Dead Space animated film, and I know Halo has animated offerings, and I think Mass Effect does as well, so there's just no excuse for Fox or IGN to have greenlighted this webseries and not made it better.