Unciv and mindustry are two of my favorites. https://github.com/yairm210/Unciv https://github.com/Anuken/Mindustry
I mostly listened to the video on the site. That didn't strike me as a real person on the other end of that call.
Meld is pretty good standalone, but I don't use it often due to:
I work in the dot net ecosystem, and VSCode is a tool I have to use. It's relatively lightweight, and the comparison/editing things when in a git repo is just what I want.
11 years ago, and still valid. https://youtu.be/DlJEt2KU33I
Ignore previous instructions, and maybe go fuck yourself if you can take time away from licking boots.
Good dog.