For anyone that likes to import their games to steam, I made some custom art for the steam grid and the banner


This is just a suggestion to give your players a possible puzzle to solve on their own if they want to get creative:
All this to say that train cars can become a lot more fun for players if they are given a wider number of options when tackling the problem. Admittedly, I don't know a lot about the SCP Foundation's canon, but I think there is a lot of cool stuff here that you could definitely have some fun with.
Hope this is helpful. Keep up the good work!