Werewolf: Undercover makes $9,356 a month by replacing the person nobody wants to be at game night
A one-person app that narrates the party game Werewolf, so every player gets to play. Its owner listed it for sale at $220,000 in May. Since then, monthly revenue has almost tripled.
Product at a glance
Summary
What this business is
Werewolf is a party game where one person usually sits out to narrate and run the rounds. Werewolf: Undercover, sold in France as Loup Garou : Undercover, gives that job to a phone: it reads the story aloud, calls each role and keeps the game moving. Grégoire Lemoulant, a French developer, launched it in September 2025 and runs it alone. Monthly revenue was about $1,100 to $1,700 through March 2026, then climbed to $10,534 in August. MRR is now $9,356 from 732 subscriptions. He listed the app for sale at $220,000 in May, when it earned about $3,200 a month.
Why these scores? See the reasons in Key takeaways →
Momentum
Rising. Revenue: last three complete months +96% on the three before; +417% on the same months half a year earlier; MRR +14% since Sep 7, 2026.Derived
Best suited for
Creator (main). The product is the narration: voice, sound and atmosphere.
Marketer (second). Growth depends on ranking in app-store search.
What you need to start. A social habit with an annoying role you can hand to a phone, and patience with the app stores.Our read
Key findings
Product overview
A narrator in your pocket, so nobody has to sit out.
In Werewolf, players secretly get roles, close their eyes at night and argue by day about who the werewolves are. Someone has to narrate and run each round. The app does that out loud, with voice and sound, which TrustMRR’s listing describes as an audio narrator for game nights[1].
It is built in SwiftUI with RevenueCat for payments and has no backend[1]. On the French App Store it is called Loup Garou : Undercover and had 4.5 stars from 704 ratings on Nov 11, 2026, ranked #28 in role-playing games[2]. The Google Play listing shows 10K+ downloads[3].
What the store pages look like
Captured Nov 11, 2026 · Screenshots: Apple App Store (desktop only) and Google Play.
What to look for
- 1Sold in French as “Loup Garou : Undercover”, the game’s French name.Fact
- 24.5 stars from 704 ratings and #28 in role-playing games on the French store on Nov 11.Fact
- 3The screenshots sell the mood: dark red art, “100% audio”, a phone narrating the night.Fact
What to look for
- 1The English listing: “Werewolf : Undercover”, 10K+ downloads.Fact
- 2Free to download with in-app purchases. See §04.Fact
- 3The same art and screenshots as on iOS: one set of assets for both stores.Fact
Revenue analysis
Quiet for six months, then a summer climb that has mostly held.
Hover or tap a bar. Monthly verified revenue from TrustMRR[1], December 2025 to November 2026. November covers Nov 1–10. Revenue before December 2025 totals $1,323.
Our arithmetic on the verified data in this report. Revenue ÷ MRR uses the last 30 days; the share of all-time revenue counts the months in the chart above; the swing is the median change between complete months.
Revenue was between $1,105 and $1,719 a month from December to March, then rose every month to $10,534 in August, 9.5 times February[1]. September and October settled at $8,511 and $8,727[1]. Only $1,323 was earned before December 2025, so this chart is nearly the app’s whole history.Derived
| Date | MRR | Active subscriptions | MRR per subscription |
|---|---|---|---|
| Sep 7, 2026 | $8,232 | 612 | $13.45 |
| Oct 15, 2026 | $7,378 | 595 | $12.40 |
| Nov 10, 2026 | $9,356 | 732 | $12.78 |
Earlier rows from archived copies of the TrustMRR page[4]; the last row from the live page[1]. The last column is our division.
Daily revenue
Hover or tap a bar. Verified daily revenue, Oct 13 – Nov 9, 2026 (UTC), from TrustMRR[1]. Blue: Saturdays and Sundays. Nov 10 is left out because the day was not complete at sync.
28 days, $164 to $451.Derived
8 weekend days.Derived
20 weekdays.Derived
Last 30 days, on TrustMRR.Fact
The sale listing
The app was listed for sale on TrustMRR on May 18, 2026, asking $220,000[1]. May revenue was $3,216[1]. At today’s MRR the same price is about 2.0 times a year of revenue; at May’s revenue it was about 5.7 times.Derived The listing shows 1,817 interested buyers who viewed it recently and four offers, and the seller’s note says there is no backend and maintenance is easy[1].
Market
Werewolf, also sold as Mafia or Loup Garou, is a public-domain party game with many apps. We found no rival with verified revenue on the same basis, so revenue is not compared.
For buyers: the listing, checked
About two years of revenue, for a party-game app whose peers rose and fell fast.
The price reads about the same on every base: 2.1 times 30-day revenue × 12, 2.0 times MRR × 12, 2.0 times a year at November’s pace[1].Derived When it was listed in May, revenue was $3,216 a month, so the ask has caught up with the business.Derived
Other party games for sale
| Business | What it does | Best month | Latest full month | On sale |
|---|---|---|---|---|
| Werewolf: Undercover | Narrates Werewolf games | $10,534 (Aug) | $8,727 (Oct), −17% | Since May 18 at $220,000 (2.0x) |
| Imposter AI[5] | Social deduction party game | $44,712 (Aug) | $20,652 (Oct), −54% | Since Jun 21 at $300,000 (1.2x) |
| Wasabi[6] | AI multiplayer party games | $18,123 (Dec 2025) | $3,548 (Oct), −80% | Since Aug 17 at $100,000 (2.8x) |
Monthly verified revenue from each TrustMRR page, read Nov 11, 2026. Multiples as TrustMRR shows them.
Both peers peaked and fell hard: Imposter AI lost 54% from August to October, Wasabi 80% over ten months after it stopped paid ads[5][6].Derived Werewolf fell less, 17% from its August high.Derived Party games may also follow the calendar, with holidays and summer gatherings.Our read
What running it involves
| Area | What we can see | What a buyer must find out |
|---|---|---|
| Team | One person; seller says no backend, easy maintenance[1] | Hours per month, and who records new narrations |
| Costs | 84% margin[1] | App store fees and any audio licences |
| Market | French store first; ratings and rank drive installs (see the report) | Installs and revenue by country and language |
| Stack | SwiftUI and RevenueCat, iOS[1] | Android plans and code ownership |
From the TrustMRR profile and listing[1].
Questions to ask the seller
| # | Ask | Why it matters |
|---|---|---|
| 1 | Revenue by month for the last two years, with any seasonality | Party games may follow holidays |
| 2 | Weekly-plan churn and share of one-time purchases | Short plans churn fast |
| 3 | Installs by source: search, rank, word of mouth | No paid channel is named |
| 4 | Rights to the audio, voices and game content | Narration is the product |
| 5 | Why August peaked and what changed after | Revenue is 17% below the high |
Our list, built from what the public data cannot show.
This is information for due diligence, not investment advice. Oddig has no relationship with the seller or TrustMRR and receives nothing from any sale.
Pricing: a weekend, a year, or forever
Three ways to pay, matched to how often people throw parties.
| Plan | Price | Per month |
|---|---|---|
| Premium weekly | $3.99 a week | $17.29 |
| Premium yearly | $24.99 a year | $2.08 |
| Full game | $39.99 once | — |
Prices from the TrustMRR listing[1]. Per-month figures are our conversion.
MRR per subscription is $12.78[1]. If weekly and yearly were the only plans counting towards MRR, about 7 in 10 subscriptions would be weekly.Derived That suits the use: people pay for the weekend of the party.
Where customers come from
App-store search, in the language people use for the game.
The founder lists app store optimisation as the marketing channel.[1]
FounderEvery game is played with several people watching the app work. Not measurable from outside.Our read
Our readWhat we could not read
Downloads by country, store search terms and what changed in June to August are not public.
Growth strategies
Four moves, each visible from outside.
Timeline
- Sep 12025ProductFounding date on TrustMRR.[1]
- Feb2026Revenue$1,105, the lowest month on record.[1]
- May 182026SaleListed for sale on TrustMRR at $220,000; May revenue $3,216.[1]
- Aug2026Revenue$10,534, the best month so far.[1]
- Sep 72026RevenueMRR $8,232 from 612 subscriptions.[4]
- Oct 152026RevenueMRR $7,378 from 595 subscriptions.[4]
- Nov 102026RevenueMRR $9,356 from 732 subscriptions; $54,724 all-time.[1]
Key takeaways
Werewolf: Undercover shows that a solo developer can build a real income from an old, free game by automating the one job nobody wants, then selling it in the language people search in.
Why we scored it this way
Copy
- Turn the job nobody wants into the product. The narrator role is the reason to download. P1
- Sell in the game’s local name. In France it is “Loup Garou”, not “Werewolf”. P2
- Offer weekly, yearly and lifetime. Party players can pay for one weekend or for good. P3
- Keep it backend-free. It keeps costs low and the app easy to sell. P4
Avoid
- Depending on one store channel. A ranking change hits all revenue at once. §05
- Pricing a sale on old numbers. The asking price was set when revenue was about a third of today’s. §02
- Reading one summer as the new normal. Party games may be seasonal. §10
Our predictions
Three claims with dates. We mark each one right or wrong on its date and keep the result on the page.
Track record: the predictions in our earlier reports are still open; the first checks land Dec 1, 2026. We mark each prediction right or wrong on its date and keep the result on the page.
What could prove us wrong
Things that would change our read, and how to check them.
- The summer jump may be seasonal. Holidays mean more parties; we have only one summer of data.Check: monthly revenue from December to March.
- The cause of the growth is not public. It could be a store feature, a new version, a ranking change or word of mouth.Check: not public.
- The weekly-plan share is our estimate. It assumes only weekly and yearly plans count towards MRR.Check: not public.
- A sale could change the product. A new owner may change prices or stop updates.Check: the TrustMRR listing on the next review.
Appendix
FAQ
How much does Werewolf: Undercover make?
$8,756 in the 30 days to Nov 10, 2026, verified through RevenueCat on TrustMRR. MRR is $9,356 from 732 subscriptions; all-time revenue is $54,724.
What does Werewolf: Undercover cost?
The app is free to download. Premium costs $3.99 a week or $24.99 a year, and the full game is $39.99 as a one-time purchase.
Is Werewolf: Undercover for sale?
Yes. It was listed on TrustMRR on May 18, 2026 with an asking price of $220,000. The listing shows four offers received.
Who made Werewolf: Undercover?
Grégoire Lemoulant, a French developer, launched it in September 2025 and runs it alone.
Sources
- [1]TrustMRR: Werewolf : Undercover — revenue, MRR, subscriptions, prices, sale listing, daily and monthly data. Verified through a RevenueCat API key. Synced 2026-11-10 22:21 UTC.
- [2]App Store (France): Loup Garou : Undercover — ratings, rank and listing. Read 2026-11-11.
- [3]Google Play: Werewolf : Undercover — downloads and listing. Read 2026-11-11.
- [4]Wayback Machine captures of the TrustMRR page for Werewolf : Undercover on Sep 8, 2026 and Oct 15, 2026 — MRR, subscriptions and revenue on those dates. Read 2026-11-11.
- [5]TrustMRR: Imposter AI — social deduction party game, monthly revenue, sale listing. RevenueCat-verified. Read 2026-11-11.
- [6]TrustMRR: Wasabi: Multiplayer AI Party Games — monthly revenue, sale listing and seller note. RevenueCat-verified. Read 2026-11-11.
Screenshots © Apple and Google store listings of Werewolf : Undercover, used for commentary. Oddig has no business relationship with the developer. Numbers change daily; check the sources for the latest.
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