How many copies did Kill It With Fire: HEATWAVE sell?

53k to 87k copies, based on its 2k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Kill It With Fire: HEATWAVE make?

Kill It With Fire: HEATWAVE is free to play, so there is no copy-sales revenue to estimate.

How big is Kill It With Fire: HEATWAVE?

Estimated players who have it: ≈ 53k–87k; from 2k reviews (Very Positive)

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

Did the prediction match what actually happened?

We hid Kill It With Fire: HEATWAVE and predicted how it would do from its 8 similar games. Every figure here, including Kill It With Fire: HEATWAVE's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 12.2M–24.9M

best case 105.1M (Garry's Mod)

Games like Kill It With Fire: HEATWAVE

A typical game among these

≈ 12.2M–24.9M copies

≈ $95.8M–$216.2M after Steam's cut

from ~306k reviews

Only the top fifth of 2019's Steam releases earned $34k or more before Steam's cut, so plan for that or less.

All 8 of the similar games are hits.

Best case: Garry's Mod at ≈ 80.0M–130.1M copies, ≈ $219.9M–$591.3M after Steam's cut. It is a breakout hit, far above a typical game.

The genre you'd be entering

These games: The similar games share Sandbox (5 of 8) and Physics (4 of 8).
The winners: Winners here lead with First-Person, priced around $7. The breakout hits carry First-Person + Mature + Utilities; a typical game here doesn't.
When they shipped: The similar games span 2006 to 2019, and none of them shipped in the last two years.

How these numbers were worked out

A hit here: 1,000+ reviews, roughly $150k+ before Steam's cut (a standard indie benchmark).

Copies come from each game's reviews times a sales-per-review rate that falls with release age, from about 36 for the most recent game here to about 79 for the oldest, then widened into a range; revenue rides on that estimate times price. Source: GameDiscoverCo (2020) and VG Insights (2021).

Similar games

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Wallpaper Engine 2018	Est. copies ≈ 31.0M–50.3M 3.3x vs typical SteamSpy 20M–50M	Est. revenue $42.5M–$114.3M after Steam's cut $77.3M–$175.9M before Steam's cut	$4.99	1.0M reviews Overwhelmingly Positive	MatureUtilities
Garry's Mod 2006	Est. copies ≈ 80.0M–130.1M 4.1x vs typical SteamSpy 20M–50M	Est. revenue $219.9M–$591.3M after Steam's cut $399.8M–$909.6M before Steam's cut	$9.99	1.3M reviews Overwhelmingly Positive	SandboxModdable
Don't Starve Together 2016	Est. copies ≈ 22.6M–36.8M 1.8x vs typical SteamSpy 10M–20M	Est. revenue $93.2M–$250.7M after Steam's cut $169.5M–$385.7M before Steam's cut	$14.99	544k reviews Very Positive	SurvivalOpen World Survival Craft
Human Fall Flat 2016	Est. copies ≈ 9.5M–15.4M SteamSpy 10M–20M	Est. revenue $52.0M–$139.7M after Steam's cut $94.5M–$214.9M before Steam's cut	$19.99	227k reviews Very Positive	Co-opFunny
People Playground 2019	Est. copies ≈ 9.2M–15.0M SteamSpy 5M–10M	Est. revenue $25.4M–$68.2M after Steam's cut $46.1M–$104.9M before Steam's cut	$9.99	321k reviews Overwhelmingly Positive	SandboxGore
BeamNG.drive 2015	Est. copies ≈ 20.5M–33.4M SteamSpy 5M–10M	Est. revenue $141.2M–$379.6M after Steam's cut $256.7M–$584.0M before Steam's cut	$24.99	421k reviews Overwhelmingly Positive	SimulationDriving
VRChat 2017	Est. copies ≈ 9.3M–15.1M SteamSpy 20M–50M	Est. revenue Free	Free	269k reviews Mostly Positive	VRFree to Play
Cities: Skylines 2015	Est. copies ≈ 14.2M–23.1M SteamSpy 10M–20M	Est. revenue $117.2M–$315.2M after Steam's cut $213.1M–$484.9M before Steam's cut	$29.99	291k reviews Very Positive	City Builder Simulation