How many copies did Predecessor sell?

441k to 716k copies, based on its 18k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Predecessor make?

Predecessor is free to play, so there is no copy-sales revenue to estimate.

Estimated players who have it: ≈ 441k–716k; from 18k reviews (Mostly Positive)

Copies are estimated from the public review count, adjusted for release year, and cross-checked against SteamSpy's own estimate.

We don't have enough similar games to place Predecessor in its genre yet. The numbers above are Predecessor's own.

Sizing up your own game? See how many copies games in its genre usually sell before you build it.