I really enjoyed working on Aliens vs Predator, I loved the 1999 PC game and I'm a massive fan of H. R. Giger's artwork. I had the honour of building the alien hive environment used in several levels. I created lots of detailed Predator architecture and statues for the Ruins level and had fun smashing up the old ruins and making them overgrown. I also tackled the issue of creating trees which looked like they were a natural part of an alien planet's flora, and that would be navigable by the jumping predator and wall-walking alien AI.
Here are some sculptures I created in ZBrush for Aliens vs Predator.