How many copies did Grabity sell?

An estimated 11k to 18k copies, based on its 358 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Grabity make?

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

How big is Grabity?

Estimated owners: ≈ 11k–18k; from 358 reviews (Very Positive)

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

Does this actually work?

We left Grabity out and predicted the genre from its 8 similar games. Every figure here, including Grabity's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 2.6M–5.1M

best case 35.3M (Rocket League®)

The Multiplayer lane

A big, proven genre, though hit-driven: most sell around 3.1M copies, while a few break out far above.

A typical game

≈ 3.1M copies

≈ $21.0M after Steam's cut

from ~80k reviews

Best case

≈ 35.3M copies

Rocket League®

from 580k reviews

A breakout hit, far above a typical game.

6 of your 8 games sit in the typical range; 2 are breakout hits far above it.

Copies and revenue are rough lifetime estimates from the review count; typical figures are medians per column, so they can come from different games.

The lane you'd be entering

Winners here lead with Multiplayer, priced around $17.
The breakout hits carry Free to Play + 2D Platformer + Football (Soccer); a typical game here doesn't.
The games you compared span 2012 to 2023, a lane with a long track record.
A typical game here lands in Diamond ($1M+ before Steam's cut, est.). Tiers: Chris Zukowski's benchmark tiers.

Similar games

Game	Price	Reviews	Tags	Est. copies	Est. revenue
Castle Crashers® 2012	Est. copies ≈ 7.2M–11.8M 1.7x vs typical SteamSpy 5M–10M	Est. revenue $29.8M–$80.1M net $54.2M–$123.3M gross	$14.99	139k reviews Overwhelmingly Positive	2DOnline Co-Op +6
Brawlhalla 2017	Est. copies ≈ 14.1M–22.8M 5.1x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	409k reviews Very Positive	Free to PlayMultiplayer +6
Overcooked! 2 2018	Est. copies ≈ 2.5M–4.1M SteamSpy 2M–5M	Est. revenue $17.3M–$46.4M net $31.4M–$71.4M gross	$24.99	83k reviews Very Positive	MultiplayerOnline Co-Op +6
Gang Beasts 2017	Est. copies ≈ 2.3M–3.7M SteamSpy 2M–5M	Est. revenue $12.6M–$33.7M net $22.8M–$51.9M gross	$19.99	66k reviews Very Positive	FunnyPhysics +6
Party Animals 2023	Est. copies ≈ 1.9M–3.0M SteamSpy 2M–5M	Est. revenue $10.3M–$27.6M net $18.7M–$42.5M gross	$19.99	78k reviews Mostly Positive	MultiplayerFunny +6
Pummel Party 2018	Est. copies ≈ 1.7M–2.8M SteamSpy 2M–5M	Est. revenue $7.2M–$19.3M net $13.1M–$29.7M gross	$14.99	57k reviews Very Positive	MultiplayerFunny +6
Stick Fight: The Game 2017	Est. copies ≈ 4.3M–7.0M 1.6x vs typical SteamSpy 2M–5M	Est. revenue $5.9M–$15.9M net $10.7M–$24.4M gross	$4.99	125k reviews Very Positive	MultiplayerFunny +6
Rocket League® 2015	Est. copies ≈ 26.9M–43.7M 7.2x vs typical SteamSpy 10M–20M	Est. revenue Free	Free	580k reviews Very Positive	MultiplayerFootball (Soccer) +6