How many copies did Planet Explorers sell?

284k to 461k copies, based on its 7k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Planet Explorers make?

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

How big is Planet Explorers?

Estimated owners: ≈ 284k–461k; from 7k reviews (Mixed)

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

Copies, estimated from reviews

typical (middle half) 571k–772k

best case 39.6M (Project Zomboid)

Games like Planet Explorers

The middle of these games

≈ 571k–772k copies

≈ $3.7M–$6.4M after Steam's cut

from ~14k reviews

Only the top fifth of 2019’s Steam releases earned about $34k gross, so plan for that or less.

All 8 of your similar games are hits.

Best case: Project Zomboid at ≈ 30.2M–49.0M copies, ≈ $207.3M–$557.3M after Steam's cut. A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on Open World (8 of 8) and Sandbox (8 of 8).
The winners: Winners here lead with Survival + Open World, priced around $25.
The era: The games you compared span 2013 to 2020, 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 31 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
Life is Feudal: Your Own 2015	Est. copies ≈ 588k–956k SteamSpy 200k–500k	Est. revenue $3.2M–$8.7M after Steam's cut $5.9M–$13.4M before the cut	$19.99	12k reviews Mixed	Open World Survival CraftMedieval
TerraTech 2018	Est. copies ≈ 758k–1.2M 1.7x vs typical SteamSpy 500k–1M	Est. revenue $5.2M–$14.0M after Steam's cut $9.5M–$21.5M before the cut	$24.99	25k reviews Very Positive	BuildingSandbox
Project Zomboid 2013	Est. copies ≈ 30.2M–49.0M 33x vs typical SteamSpy 10M–20M	Est. revenue $207.3M–$557.3M after Steam's cut $376.9M–$857.4M before the cut	$24.99	477k reviews Very Positive	SurvivalZombies
Space Engineers 2019	Est. copies ≈ 3.9M–6.3M 9.4x vs typical SteamSpy 2M–5M	Est. revenue $21.3M–$57.2M after Steam's cut $38.7M–$88.0M before the cut	$19.99	134k reviews Very Positive	SpaceSandbox
Craftopia 2020	Est. copies ≈ 501k–814k SteamSpy 1M–2M	Est. revenue $3.4M–$9.3M after Steam's cut $6.3M–$14.2M before the cut	$24.99	20k reviews Mostly Positive	Open WorldCrafting
Conan Exiles Enhanced 2018	Est. copies ≈ 3.6M–5.8M 8.2x vs typical SteamSpy 5M–10M	Est. revenue $39.2M–$105.3M after Steam's cut $71.2M–$162.0M before the cut	$39.99	117k reviews Mostly Positive	SurvivalOpen World
Mist Survival 2018	Est. copies ≈ 435k–708k SteamSpy 500k–1M	Est. revenue $1.3M–$3.5M after Steam's cut $2.4M–$5.4M before the cut	$10.99	14k reviews Mostly Positive	SurvivalZombies
Dark and Light 2017	Est. copies ≈ 407k–661k SteamSpy 500k–1M	Est. revenue $2.0M–$5.4M after Steam's cut $3.7M–$8.3M before the cut	$17.99	12k reviews Mixed	Open WorldSurvival