How much revenue did OpenTTD make?

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

How many copies did OpenTTD sell?

Q: How many copies did OpenTTD sell?

421k to 684k copies, based on its 17k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 421k–684k; from 17k 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 OpenTTD out and predicted the genre from its 8 similar games. Every figure here, including OpenTTD's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 6.2M–12.1M

best case 12.3M (Raft)

Games like OpenTTD

The middle of these games

≈ 6.2M–12.1M copies

≈ $53.6M–$170.3M after Steam's cut

from ~223k 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: Raft at ≈ 9.4M–15.2M copies, ≈ $51.5M–$138.4M after Steam's cut.

What it took to get here

About half the games that made it here had over 122k reviews in their first month; the spread ran 953 to 182k.

The genre you'd be entering

Your set: Your set clusters on Sandbox (6 of 8) and Building (5 of 8).
The winners: Winners here lead with Survival + Open World Survival Craft, priced around $20.
The era: The games you compared span 2015 to 2026, and 1 of your 8 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 61 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
People Playground 2019	Est. copies ≈ 9.1M–14.9M SteamSpy 5M–10M	Est. revenue $25.1M–$67.5M after Steam's cut $45.7M–$103.9M before the cut	$9.99	317k reviews Overwhelmingly Positive	SandboxGore
Scrap Mechanic 2026	Est. copies ≈ 3.0M–4.9M SteamSpy 2M–5M	Est. revenue $24.3M–$65.2M after Steam's cut $44.1M–$100.3M before the cut	$28.99	123k reviews Very Positive	BuildingSandbox
Cities: Skylines 2015	Est. copies ≈ 14.3M–23.2M SteamSpy 10M–20M	Est. revenue $117.6M–$316.2M after Steam's cut $213.8M–$486.4M before the cut	$29.99	292k reviews Very Positive	City Builder Simulation
Raft 2022	Est. copies ≈ 9.4M–15.2M 1.7x vs typical SteamSpy 10M–20M	Est. revenue $51.5M–$138.4M after Steam's cut $93.6M–$213.0M before the cut	$19.99	378k reviews Very Positive	SurvivalMultiplayer
Stellaris 2016	Est. copies ≈ 8.2M–13.3M SteamSpy 2M–5M	Est. revenue $112.7M–$303.1M after Steam's cut $205.0M–$466.3M before the cut	$49.99	197k reviews Very Positive	SpaceGrand Strategy
The Sims™ 4 2020	Est. copies ≈ 5.0M–8.0M SteamSpy 10M–20M	Est. revenue Free	Free	200k reviews Very Positive	Life SimCharacter Customization
RimWorld 2018	Est. copies ≈ 7.5M–12.2M SteamSpy 5M–10M	Est. revenue $72.0M–$193.5M after Steam's cut $130.8M–$297.7M before the cut	$34.99	246k reviews Overwhelmingly Positive	Colony SimBase-Building
ASTRONEER 2019	Est. copies ≈ 4.0M–6.5M SteamSpy 2M–5M	Est. revenue $33.0M–$88.8M after Steam's cut $60.1M–$136.6M before the cut	$29.99	139k reviews Very Positive	MultiplayerOpen World