Well, i found a patched executable for 1.3.1, and now the game runs. i dont know what it is, i have the game from the store, installed, updated, and it didnt work. but with the no-cd/no-serial it works. Great mod by the way, i especially liked the parts which werent so easy to figure out, like dropping the letter from the inventory and placing it in the chest. thats the kind of thing you dont see in many games, and it took me a bit to figure out instead of just clicking on the chest. also the part at the beginning of the level where you were able to crawl through small windows and onto slanted rooftops. if only the original thief was that unlimited in the gameplay by the way i couldnt open the 2nd chest down in the basement. is that supposed to be opened or its just not in the demo yet? Oh and also this makes me now want to replay thief 3. ive played thief 1 and 2 countless times, but thief 3 only once. something to do while waiting for this mod to be finished ;0