seer

My background is in teaching C programming at the university level and DDD was very helpful there, although not very comfortable to use. For years, I've looked for a replacement and finally found Seer and was very happy with it. https://github.com/epasveer/seer Interactive debugging is definitely useful when teaching but obviously teaching is a different context. But Seer is not an educational tool and I believe it will hold up in other cases as well.

I submitted a bug report for the font: https://github.com/epasveer/seer/issues/265

I wrote https://github.com/daym/idea-native2-debugger as a stop-gap. It uses gdb and works in IntelliJ IDEA Community edition. Setting it up the first time is kinda weird since you need to add a new run/debug configuration "Native2Debugger". I could not figure out how to hook this directly into the existing run configuration that you use to run your program to begin with. Otherwise, I like how it turned out. If you want a standalone frontend instead, https://github.com/epasveer/seer is extremely good. And emacs has gdb integration. By now I tried it, and... I guess it's better than nothing.

Seer is a decent front end for gdb https://github.com/epasveer/seer