How many copies did Tennis Life sell?

570 to 927 copies, based on its 23 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Tennis Life make?

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

How big is Tennis Life?

Estimated players who have it: ≈ 570–927; from 23 reviews (Mostly Negative)

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 Tennis Life and predicted how it would do from its 8 similar games. Every figure here, including Tennis Life's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 244k–886k

best case 1.8M (Stronghold Crusader HD (2012))

Games like Tennis Life

A typical game among these

≈ 244k–886k copies

≈ $1.4M–$6.2M after Steam's cut

from ~10k 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: Stronghold Crusader HD (2012) at ≈ 1.3M–2.2M copies, ≈ $3.7M–$9.9M after Steam's cut.

What their first month looked like

About half the games that made it here had over 3k reviews in their first month; the range was 483 to 8k.

The genre you'd be entering

These games: The similar games share Real Time Tactics (6 of 8) and Building (5 of 8).
The winners: Winners here lead with Military + City Builder, priced around $10.
When they shipped: The similar games span 2013 to 2024, 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 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
Stronghold Crusader HD (2012) 2013	Est. copies ≈ 1.3M–2.2M 2.0x vs typical SteamSpy 1M–2M	Est. revenue $3.7M–$9.9M after Steam's cut $6.7M–$15.2M before Steam's cut	$9.99	21k reviews Overwhelmingly Positive	MilitaryCity Builder
Stronghold 2: Steam Edition 2017	Est. copies ≈ 199k–323k SteamSpy 500k–1M	Est. revenue $819k–$2.2M after Steam's cut $1.5M–$3.4M before Steam's cut	$14.99	6k reviews Very Positive	City BuilderReal Time Tactics
Stronghold: Definitive Edition 2023	Est. copies ≈ 258k–419k SteamSpy 500k–1M	Est. revenue $1.1M–$2.9M after Steam's cut $1.9M–$4.4M before Steam's cut	$14.99	10k reviews Very Positive	City BuilderStrategy
The Lost Village 2024	Est. copies ≈ 78k–127k SteamSpy 500k–1M	Est. revenue $257k–$692k after Steam's cut $468k–$1.1M before Steam's cut	$11.99	3k reviews Mostly Positive	Base-BuildingResource Management
Planetary Annihilation: TITANS 2015	Est. copies ≈ 718k–1.2M SteamSpy 500k–1M	Est. revenue $5.9M–$15.9M after Steam's cut $10.8M–$24.5M before Steam's cut	$29.99	15k reviews Very Positive	RTSStrategy
Stronghold HD (2012) 2013	Est. copies ≈ 661k–1.1M SteamSpy 200k–500k	Est. revenue $1.1M–$2.9M after Steam's cut $2.0M–$4.5M before Steam's cut	$5.99	10k reviews Overwhelmingly Positive	Real Time TacticsCity Builder
The Battle of Polytopia 2020	Est. copies ≈ 149k–242k SteamSpy 500k–1M	Est. revenue $615k–$1.7M after Steam's cut $1.1M–$2.5M before Steam's cut	$14.99	6k reviews Very Positive	StrategyTurn-Based
Dune: Spice Wars 2023	Est. copies ≈ 337k–548k SteamSpy 1M–2M	Est. revenue $3.2M–$8.7M after Steam's cut $5.9M–$13.4M before Steam's cut	$34.99	14k reviews Mostly Positive	ManagementSingleplayer