Check your %localappdata%\Tower\Saved\Crashes folder. If something was created, you have a crash.
If you do have a crash, here are the things that it wants you to report: Bug Report Guidelines
And then here is how to do it: How to Report Crashes | CURRENT GAME VERSION: 0.10.1.0
They’ve recommended (to me) in the past checking to make sure your game has been verified by Steam: https://support.steampowered.com/kb_article.php?ref=2037-QEUH-3335.
I also had an issue where my GPU was set to auto-switch in NVIDIA Control Panel instead of the dedicated GPU so it was going back and forth between the integrated graphics and RTX. You may want to check there, as well. That came up more than once when I was opening up my laptop to a fatal error, but it may not be the same for you.
I know Mad is working on updating where to find the troubleshooting stuff in case it is your laptop (that poor team and me) but they won’t know whether it’s you or the program until you post the crash dump.
I saw on one of the Trello cards it looks like they’re going to try to make crashdumps automatic now so you may not have to worry about it in the future, but I don’t know how they’re going to handle being told what you were up to around that.