How many copies did The Plan sell?

1.2M to 2.0M copies, based on its 24k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did The Plan make?

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

How big is The Plan?

Estimated owners: ≈ 1.2M–2.0M; from 24k 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 The Plan out and predicted the genre from its 8 similar games. Every figure here, including The Plan's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 7.6M–17.6M

best case 40.0M (Wallpaper Engine)

The Survival genre

All 8 of your similar games are hits. A big, proven genre for a game like yours.

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

A typical game

≈ 7.6M–17.6M copies

≈ $64.9M–$130.6M after Steam's cut

from ~242k reviews

Best case

≈ 30.5M–49.6M copies

Wallpaper Engine · ≈ $41.9M–$112.5M after Steam's cut

The genre you'd be entering

Your set: Your set clusters on Survival (4 of 8) and Base-Building (3 of 8).
The winners: Winners here lead with Mature + Utilities, priced around $5.
The era: None of the games you compared shipped in the last two years; the newest is from 2020. That says more about your picks than about the market, so add newer similar games to read the timing.

Copies and revenue are rough lifetime estimates from the review count.

Similar games

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Wallpaper Engine 2018	Est. copies ≈ 30.5M–49.6M 4.2x vs typical SteamSpy 20M–50M	Est. revenue $41.9M–$112.5M after Steam's cut $76.1M–$173.1M before the cut	$4.99	1.0M reviews Overwhelmingly Positive	MatureUtilities
Unturned 2017	Est. copies ≈ 19.4M–31.5M 2.3x vs typical SteamSpy 50M–100M	Est. revenue Free	Free	564k reviews Very Positive	Free to PlaySurvival
SCP: Secret Laboratory 2017	Est. copies ≈ 8.0M–13.0M SteamSpy 5M–10M	Est. revenue Free	Free	232k reviews Very Positive	Free to PlayMultiplayer
RimWorld 2018	Est. copies ≈ 7.4M–12.0M SteamSpy 5M–10M	Est. revenue $71.1M–$191.2M after Steam's cut $129.3M–$294.2M before the cut	$34.99	243k reviews Overwhelmingly Positive	Colony SimBase-Building
ASTRONEER 2019	Est. copies ≈ 4.0M–6.5M SteamSpy 2M–5M	Est. revenue $32.9M–$88.6M after Steam's cut $59.9M–$136.3M before the cut	$29.99	139k reviews Very Positive	MultiplayerOpen World
Squad 2020	Est. copies ≈ 6.3M–10.3M SteamSpy 2M–5M	Est. revenue $69.8M–$187.6M after Steam's cut $126.9M–$288.6M before the cut	$39.99	240k reviews Very Positive	MilitaryRealistic
Subnautica 2018	Est. copies ≈ 11.5M–18.6M 1.6x vs typical SteamSpy 5M–10M	Est. revenue $94.5M–$254.0M after Steam's cut $171.8M–$390.8M before the cut	$29.99	377k reviews Overwhelmingly Positive	Open World Survival CraftSurvival
Black Mesa 2020	Est. copies ≈ 3.8M–6.2M SteamSpy 2M–5M	Est. revenue $20.9M–$56.1M after Steam's cut $37.9M–$86.3M before the cut	$19.99	144k reviews Very Positive	FPSRemake