'Invaders' was before in 'Maps' section but then Juha Laaksonen added more details and things to it and then it finally reached the 'Hot Maps' section. This map is trying to continue Allen H Blum's and 'Levelord's' building style in original Duke3d's first and third episode. Juha's style works very well and this level is almost original Duke3d looking. Secret places are very nicely made and city theme well used. Anyway there will be a whole episode of these levels sometimes in 2001.