Jul 27, 2015, 07:57 PM
I know this is kinda old but for anyone having this problem: I was playing RCT3 (Off of Steam) and accidentally changed my integrated graphics which caused my game to crash and wouldn't let me start again. I had the "Direct 3D" problem and was trying to fix it but never did. I went to my Program Files foder and found my Steam folder then found RCT 3 Platinum folder which I obviously clicked. You need to delete the AppCache. I ran it after this and RCt3 works fine again.