Hello everyone!
In our last update we fixed a crash that many of you had by disabling the dynamic grass. However it does not happen for everyone. So meanwhile we are working on a complete fix, we propose a custom file to those who didn't crash in the early area of the game, that brings dynamic vegetation back (known as merged mesh vegetation):
mirror1: https://docs.google.com/uc?id=0B3ZBSML7nH5ndS1sRUstM3FMeDQ&export=download
mirror2: https://docs.google.com/uc?id=0By030U--yFS_MVlPMi03b3IwZmc&export=download
You can replace the current level.pak with this one (make sure to make a backup just in case).
It is located in Game/levels/umbra_alpha_001/
You can open this directory via steam -> right click on the game>properties>local files>browse local files
In the mean time, we are working on other bugs, quests, and performance issues. Thanks again for your support!
Simon