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?

422k to 686k copies, based on its 17k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 422k–686k; from 17k 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 OpenTTD and predicted how it would do from its 8 similar games. Every figure here, including OpenTTD's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 6.2M–12.2M

best case 12.3M (Raft)

Games like OpenTTD

A typical game among these

≈ 6.2M–12.2M copies

≈ $53.9M–$170.8M after Steam's cut

from ~225k 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: Raft at ≈ 9.4M–15.3M copies, ≈ $51.7M–$139.0M after Steam's cut.

What their first month looked like

About half the games that made it here had over 122k reviews in their first month; the range was 951 to 182k.

The genre you'd be entering

These games: The similar games share Sandbox (6 of 8) and Building (5 of 8).
The winners: Winners here lead with Survival + Open World Survival Craft, priced around $20.
When they shipped: The similar games span 2015 to 2026, and 1 of the 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 ≈ 9.2M–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
Scrap Mechanic 2026	Est. copies ≈ 3.1M–5.0M SteamSpy 2M–5M	Est. revenue $24.3M–$65.4M after Steam's cut $44.2M–$100.6M before Steam's cut	$28.99	123k reviews Very Positive	BuildingSandbox
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
Raft 2022	Est. copies ≈ 9.4M–15.3M 1.7x vs typical SteamSpy 10M–20M	Est. revenue $51.7M–$139.0M after Steam's cut $94.0M–$213.8M before Steam's cut	$19.99	379k reviews Very Positive	SurvivalMultiplayer
Stellaris 2016	Est. copies ≈ 8.2M–13.3M SteamSpy 2M–5M	Est. revenue $112.6M–$302.6M after Steam's cut $204.7M–$465.6M before Steam's cut	$49.99	197k reviews Very Positive	SpaceGrand Strategy
The Sims™ 4 2020	Est. copies ≈ 5.0M–8.1M SteamSpy 10M–20M	Est. revenue Free	Free	201k reviews Very Positive	Life SimCharacter Customization
RimWorld 2018	Est. copies ≈ 7.6M–12.3M SteamSpy 5M–10M	Est. revenue $72.7M–$195.4M after Steam's cut $132.2M–$300.7M before Steam's cut	$34.99	249k reviews Overwhelmingly Positive	Colony SimBase-Building
ASTRONEER 2019	Est. copies ≈ 4.0M–6.5M SteamSpy 2M–5M	Est. revenue $33.1M–$89.1M after Steam's cut $60.2M–$137.0M before Steam's cut	$29.99	139k reviews Very Positive	MultiplayerOpen World