Xenforo forum sites show user-only threads as 404 unless you are logged in.
You need to add your personal.ini either:
Code:
## For just this story
[https://forums.sufficientvelocity.com/threads/the-dungeon-without-a-system.97590/]
username:YourName
password:yourpassword
always_login:true
## or for all SV downloads:
[forums.sufficientvelocity.com]
username:YourName
password:yourpassword
always_login:true