Swords in the Moon [Concluded]

[KukriKhan]

I started playing around with those numbers as well when I saw them, but was applying them to (1) the list of dead players and (2) the raw list of starting players. I came up with nothing useful.

Using those same numbers (18, 22, 25) as a straight substitution cipher results in:
18 = R
22 = V
25 = Y

RVY is not the same as RHY(felwyr), but it is surprisingly close.

I just took the sequence as the killer noting the mounting number of kills, night-to-night. But I admit, I wondered if they (the numbers) referred to players, too.