Doom Editor - The Real Thing v2.60b4 was released in May 1994. The package included four demonstration maps: MINE1.WAD, STEPS1.WAD, STEPS2.WAD, and STEPS3.WAD. The maps themselves had been distributed several weeks earlier as DEWADS1.ZIP; the idgames version is dated April 19, but an announcement was posted to alt.games.doom at least as early as April 2. They are significant for historical reasons, and because MINE1.WAD (at least) was used as a base for various 1994 levels, especially deathmatch levels.