Doom Construction Kit

Admittedly I haven't used DCK recently and I've probably forgotten alot of the cooler features of this particular editor, but I can still say what I do know; DCK was known for being a very solid SECTOR-based DOS Editor.

Sure, it may have seemed like a hapless DEU-clone before you download it; But make no mistake, it was a little similar to DEU, but it had it's own share of awesome-ness. For example, one thing it probably picked up from DEU was in that you had to do everything by hand- and I mean everything. This way if you used one of the editors that went further and later up the timeline, you were prepared to face just about every problem in the book, whether it was a simple SECTOR-reference problem, or if it was a huge mess of screwed-up linedefs; that was the sheer power of DCK for it's time.

Also a little similar to DEU, DCK is mode-based, meaning you need to switch to VERTEX mode to edit VERTICEs on your map; this can greatly help out the editing process, particularly with those nasty 10-sectors WADs; this is one of the reasons DEU-like editors are always better than WADAuthor.

And, just as WADED, that power came with a price. Yup, more pay-editors... Well, for every version after 2.2f, that is, which doesn't really make alot of sense since you can still grab that version from Doomworld (GO HERE) and still have all the "super-cool" features that the later versions have.