How many copies did Underground Defense Force -Sword and Sorcery and Swarm of Insects- sell?

Q: How many copies did Underground Defense Force -Sword and Sorcery and Swarm of Insects- sell?

471 to 766 copies, based on its 19 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Q: How much revenue did Underground Defense Force -Sword and Sorcery and Swarm of Insects- make?

$905–$2k after Steam's roughly 30% cut, derived from the copies estimate and its price.

Estimated copies sold: ≈ 471–766; $905–$2k after Steam's cut $2k–$4k before Steam's cut; from 19 reviews (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 Underground Defense Force -Sword and Sorcery and Swarm of Insects- and predicted how it would do from its 8 similar games. Every figure here, including Underground Defense Force -Sword and Sorcery and Swarm of Insects-'s, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 126k–237k

best case 2.1M (Persona 3 Reload)

Games like Underground Defense Force -Sword and Sorcery and Swarm of Insects-

A typical game among these

≈ 126k–237k copies

≈ $679k–$2.9M after Steam's cut

from ~4k 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: Persona 3 Reload at ≈ 1.6M–2.6M copies, ≈ $26.5M–$71.2M after Steam's cut. It is a breakout hit, far above a typical game.

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 285 to 16k.

The genre you'd be entering

These games: The similar games share Party-Based RPG (8 of 8) and Action RPG (4 of 8).
The winners: Winners here lead with Party-Based RPG + Turn-Based Strategy, priced around $47. The breakout hits carry Turn-Based Strategy + Adventure + Dating Sim; a typical game here doesn't.
When they shipped: The similar games span 2005 to 2025, and 3 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
Persona 3 Reload 2024	Est. copies ≈ 1.6M–2.6M 16x vs typical SteamSpy 1M–2M	Est. revenue $26.5M–$71.2M after Steam's cut $48.2M–$109.6M before Steam's cut	$59.99	65k reviews Very Positive	JRPGRPG
Expeditions: Rome 2022	Est. copies ≈ 169k–274k 1.7x vs typical SteamSpy 500k–1M	Est. revenue $2.1M–$5.6M after Steam's cut $3.8M–$8.6M before Steam's cut	$44.99	7k reviews Very Positive	RPGStrategy
Dungeon Siege II 2005	Est. copies ≈ 185k–300k SteamSpy 500k–1M	Est. revenue $355k–$954k after Steam's cut $645k–$1.5M before Steam's cut	$6.99	3k reviews Mostly Positive	RPGFantasy
Dungeon Siege 2011	Est. copies ≈ 270k–439k SteamSpy 500k–1M	Est. revenue $519k–$1.4M after Steam's cut $944k–$2.1M before Steam's cut	$6.99	4k reviews Very Positive	RPGFantasy
Atelier Yumia: The Alchemist of Memories & the Envisioned Land 2025	Est. copies ≈ 82k–133k SteamSpy 50k–100k	Est. revenue $1.6M–$4.2M after Steam's cut $2.9M–$6.5M before Steam's cut	$69.99	3k reviews Mixed	ExplorationFemale Protagonist
Wartales 2023	Est. copies ≈ 899k–1.5M 9.2x vs typical SteamSpy 1M–2M	Est. revenue $8.7M–$23.3M after Steam's cut $15.7M–$35.8M before Steam's cut	$34.99	36k reviews Very Positive	RPGOpen World
Our Adventurer Guild 2024	Est. copies ≈ 89k–145k SteamSpy 100k–200k	Est. revenue $368k–$990k after Steam's cut $670k–$1.5M before Steam's cut	$14.99	4k reviews Overwhelmingly Positive	Turn-Based Tactics Management
Dungeons & Dragons: Dark Alliance 2021	Est. copies ≈ 117k–189k SteamSpy 200k–500k	Est. revenue Free	Free	5k reviews Mixed	Co-opAction