Eh but it existed for long before Atom and VS code. (disclaimer I paid the $70 and felt it was well worth the money at the time, these days yeah maybe I wouldn't but I still do find myself using it a lot)

Edit: To expand, sublime is still by far my favorite TEXT editor. I just don't find doing everyday text editing tasks in VSCode to be pleasant at all, its an amazing IDE though!. Atom is much better for the task but the responsiveness and large file handling capabilities of sublime makes it the clear winner. If you already paid the $70 for a licence back when atom didn't exist anyways...