How much revenue did Niffelheim make?

$390k–$1.0M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Niffelheim sell?

71k to 115k copies, based on its 2k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 71k–115k; $390k–$1.0M after Steam's cut $709k–$1.6M before the cut; from 2k reviews (Mostly Positive)

A labeled estimate from the public review count (adjusted for release year), not exact sales. Owner data cross-checked with SteamSpy.

We don't have enough similar games to place Niffelheim in its genre yet, so these are its own numbers, not a genre read.

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