Night Sky

This is not a night sky, it's a space sky, with highly visible galaxies. It won't make sense on Earth because you can't see galaxies with the naked eye, but shall work in space and on any astronomical bodies without or with thin atmosphere.

Also there's a problem with the permission sections in the text files. The outer text file, published with the archive, says:

Quote

Authors MAY use the sky textures with *NO* modifications to the graphics
(including the "SKYx" sections of the "TEXTUREx"/"PNAMES" and the "MAPINFO" (in
Hexen) resources) to build additional levels with, but *CREDIT ME* for the sky
textures in your WAD's text file.

which gives you limited permission to use the sky in your maps, but still not permissive enough to let you adapt the graphics to any modern rendering.

However, the internal (from the archive) text file says:

Quote

Authors MAY NOT use this texture pack (NITESKY.ZIP) or any of it's included
files or resources (including the "SKYx" sections of the "TEXTUREx"/"PNAMES",
the "MAPINFO" in the Hexen resources, or the original "Space2.gif" night sky
image) to build additional levels without prior written permission.

which, while suspicious of lack of attention on writer's part, on this current state it means that you just can't use these graphics in your mods. You can try to contact the author to get a permission, so there's that chance.

So which one is it? Because without further clarification, "yes AND no = no".

It's a sky texture replacement wad, it has several files for each iwad and pwad like Eternal Doom. It's a bit dated these days, but for true old-school feel it should be enough. If you feel tired of default sky textures in your iwad playthrough, load this and enjoy different view and feel. 

This would go well with some of the Master Levels which have their own simpler starry skies.

Right sky for DooM.

Excellent Addon!

Fucking awesome, dude!

Good!