Should I buy this game???

[Suicide Junkie]

The neostandard isn't a mod or anything.

It is a standardized naming scheme for extra race pictures.
EG:
If you're a shipset artist, and have made a death star like ship: you save that as the closest neostandard name ..."_worldship.bmp"

If you're a modder who wants to include a "battlemoon", you use "_worldship.bmp", since a fair number of shipsets are likely to have it.

If the mod called for "battlemoon.bmp" and the artist saved his picture as "deathstar.bmp", you would see nothing.
Instead, with the neostandard mediating names, you get to see those fancy extra pictures used in more places.