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How many copies did Senpai and the Mysterious Dungeon sell?

Estimated copies sold
≈ 1k–2k
$6k–$15k after Steam's cut $10k–$23k before Steam's cut
from 58 reviews (Mostly 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 Senpai and the Mysterious Dungeon and predicted how it would do from its 8 similar games. Every figure here, including Senpai and the Mysterious Dungeon's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 1.1M–3.0M
best case 7.6M (Far Cry® 5)
Games like Senpai and the Mysterious Dungeon

A typical game among these

≈ 1.1M–3.0M copies

≈ $15.5M–$57.6M after Steam's cut

from ~42k 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.

No genre covers most of these similar games. The closest is Action-Adventure (4 of 8), so its genre is hard to place.

Of the 416 indie games that passed 1,000 reviews in 2022, 11.8% were novel genre mixes and 88.2% stuck to an established genre. Published indie market research.

Best case: Far Cry® 5 at ≈ 5.8M–9.4M copies, ≈ $95.1M–$255.6M after Steam's cut.

What their first month looked like
About half the games that made it here had over 5k reviews in their first month; the range was 1k to 27k.
The genre you'd be entering
These games
The similar games share Action-Adventure (4 of 8) and Open World (4 of 8).
The winners
Winners here lead with Open World + Action-Adventure, priced around $60.
When they shipped
The similar games span 2018 to 2025, 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 38 for the oldest, then widened into a range; revenue rides on that estimate times price. Source: GameDiscoverCo (2020) and VG Insights (2021).

Similar games

Soul Dossier
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Est. copies
≈ 693k–1.1M
SteamSpy 2M–5M
Est. revenue
Free		 Free
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High On Life
2022
Est. copies
≈ 640k–1.0M
SteamSpy 500k–1M
Est. revenue
$7.0M–$18.9M after Steam's cut $12.8M–$29.1M before Steam's cut		 $39.99
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ComedyFPS
Far Cry® 5
2018
Est. copies
≈ 5.8M–9.4M
4.5x vs typical
SteamSpy 2M–5M
Est. revenue
$95.1M–$255.6M after Steam's cut $172.9M–$393.3M before Steam's cut		 $59.99
190k reviews
Very Positive
Open WorldAction-Adventure
Assassin's Creed Valhalla
2022
Est. copies
≈ 1.1M–1.8M
SteamSpy 500k–1M
Est. revenue
$18.5M–$49.8M after Steam's cut $33.7M–$76.6M before Steam's cut		 $59.99
45k reviews
Mixed
Open WorldAction
AI LIMIT
2025
Est. copies
≈ 921k–1.5M
SteamSpy 200k–500k
Est. revenue
$8.9M–$23.8M after Steam's cut $16.1M–$36.6M before Steam's cut		 $34.99
37k reviews
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Souls-likeFemale Protagonist
STAR WARS Jedi: Survivor™
2023
Est. copies
≈ 2.1M–3.5M
2.1x vs typical
SteamSpy 1M–2M
Est. revenue
$41.3M–$111.2M after Steam's cut $75.2M–$171.0M before Steam's cut		 $69.99
87k reviews
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ActionAdventure
Mafia II: Definitive Edition
2020
Est. copies
≈ 967k–1.6M
SteamSpy 2M–5M
Est. revenue
$8.0M–$21.4M after Steam's cut $14.5M–$33.0M before Steam's cut		 $29.99
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ActionAdventure
A Way Out
2020
Est. copies
≈ 2.6M–4.2M
2.4x vs typical
SteamSpy 2M–5M
Est. revenue
$21.1M–$56.7M after Steam's cut $38.4M–$87.3M before Steam's cut		 $29.99
103k reviews
Very Positive
Online Co-OpCo-op

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