If you see something of yours here and would like me to remove it, just ask and I will. Unless it's under a Creative Commons license and it's already a plot point, in which case I probably won't.
By necessity, this page has a few unmarked spoilers. Be warned.
A lot of the stuff on this site is from http://mspaintadventures.com and is copyrighted by Andrew Hussie or probably some other people that are listed on that credits page. It's also his/their intellectual property and so forth.
The following works from the SCP Foundation are also used in Regicide:
These works, as well as the general concept of the SCP Foundation and some other stuff from the SCP Wiki maybe, are all licensed under a Creative Commons Attribution-ShareAlike 3.0 License.
For attribution regarding the theme used by the site, consult the Theme page.
The images used on > Mors: Contemplate shitty anime memes while staring at your favorite wall. come from various TV shows and animes and whatnot, and I'm like 65% sure it qualifies as fair use or something like that. The memes themselves were pulled from Google Images. You can request to have them attributed to you if you made them, but uh, are you sure you want the credit?
The art for Lucy, Ruby, Chop, Lexa, and Mors was commissioned from Katzirra; the art for Coluzi, Gratio, and Joslas was commissioned from doggirlsondrugs; the art for Destiny was commissioned from Czarina Doyle; the art for LOGAV was commissioned from Velt. All artists released their work under the appropriate CC license.
All other content (such as original characters, concepts novel to Regicide, etc.) was created by Akumeoy and is licensed under Creative Commons Attribution-ShareAlike 3.0 License. While this license does allow merchandising (assuming you provide proper attribution) with or without my permission, I'd appreciate it if you got my okay for any serious commercial endeavors, as well as the okay from any of the relevant artist(s) listed here. You should probably also check out what MSPA has to say about that, too.
If you're planning on suing me or filing some DMCA claim or whatever, consider messaging me with what kind of attribution would be acceptable to you (or an informal takedown request) first!