Rising Star Games have released a trailer specifically look at the map editor in their [email protected] title.
The map editor trailer shows what looks like an incredibly simple, yet powerful system. Players can create corridors, rooms, and set traps, and other landmarks around the map. There looks to be a limit of forty rooms with a tile count of thirty-five tiles per room.
The Map Editor will be releasing on PC for the 9th February 2017.
Source: Rising Star Games YouTube