Dont know about stellaris but I got Cities Skylines (1) with all the content DLCs at the time for under $50, which I consider a very good deal for the hours I put in. For reference, I paid roughly the same amount for BF5 which I played for about a month and then forgot about it
One time on Manjaro i had a dependency issue regarding python3. So i just removed it. The I watched in horror as i saw what packages depend on python3, including pacman and manjaro-system, but did not dare to interrupt the process and end up with a half-broken system, and my curiosity wanted to see it play out. Then I rebooted, and thus legally turned my Manjaro system into a half-working Arch install. It even displayed the OS as Arch Linux. Still managed to fix it without reinstalling by downloading the package files from http mirrors, but if i was smart the entire thing should have taken 5 minutes instead of a full afternoon. Was a valuable learning experience tho