Greetings, Firstly, let me express how much I admire TDM. Since T3 it was so reassuring to know that "there are guys out there who make a huge effort to make/modify a great engine for all the Thief fans". Kudos and lots of respect! I finally decided to give TDM a try. I'd like to install it and try it out. I read about Thief Den and Tears of St.Lucia maps provided to the community. As I didn't find all the installation answers in this thread, I'd like to ask if I need to buy a full version of Doom3. OtoH, there is a demo version of Doom3, which can be installed instantly. Will it do? What else do I need? Any section of this forum where I can read about it more?