ΔE 16.1, loose: different enough that you should pick on purpose. Orange Rust is a little lighter, more saturated, warmer than Tuskgor Fur.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Orange Rust is a little lighter, more saturated, warmer than Tuskgor Fur.
The same difference applies the other way round: Tuskgor Fur is a little darker, more muted, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Tuskgor Fur on the colour wheel See Orange Rust on the colour wheel
All matches: Tuskgor Fur equivalents · Orange Rust equivalents