I know someone who is now writing a game in C++ and SDL with only sublime and gcc command line
I am not even joking...
Has been for months now too, its not like the person gave up early.
I was doing around the same thing a few weeks ago: I used Atom with a ton of C++ plugins, a terminal, and CMake.
It's surprisingly easier than I thought. In some ways, it's even better than an IDE, in that I don't have to wade through a bunch of menus to get something done. On the other hand, autocompletion and error-checking is a bit.. off. Then again, I'm on Linux; the only other good IDE I've found there is CLion, but that costs money