Alright, buckle up folks because I have spent at least 2 hours trouble shooting this and I still haven't fixed it. The issue: My game crashes on later survival waves. And not just sometimes. I. Can't. Finish. A. Survival. Map. Its bad. But doing something non survival? Just fine. When the game crashes, it crashes straight to desktop without an error. So naturally I started to investigate and trouble shoot. So I start off my verified game cache. 5 files missing. Lovely. Does that fix it? no, crashed again. Verify again. 3 files missing. Well that's weird. So I "launch" the game again, but quit out of the launcher. Verify again. 3 files missing. WTF? So somehow, by me launching DD, I lose 3 files. Without fail. Every time. So I turned off steam cloud saving, turned off the steam overlay. Deleted everything, including the steam cloud save files. And re downloaded. This time when it crashed i got a run time error. Something about the program doing something unexpected and terminating. Well at least i got an error message. Re validated and tried again, then crashed again, but without an error. Wonderful. Another symptom: Every time i go to the config menu it says it can't load total conversions. Whatever that means. I finally found a temporary work around, disabling multi-threaded renderer. Now as much as i would like to leave it like that, even though now i can run survival, im running a solid 15-20fps during intense waves. Not exactly a fix, but its keeping me going for now. Before I did a complete wipe of my game, I did have the xbox 360 mod that remapped the 360 buttons to my numpad so i could sign in afks, and also at one point went in and disabled the frame limit. Both of which are no longer installed due to the complete wipe, but i figured i would mention it. Here are my specs: Windows 10 i7-7700k Dual GTX 980's in SLI 1tb Samsung 960 Evo 16gb Ram Anything else I missed? Lemme know and I will add it. Help, I am slowly losing my sanity.