The game's CEO is himself a 470k-follower creator: a "livery download site" for a Brazilian motorcycle game. 19 days, 390k installs

"Skins Projeto Grau 2" is the official skin community for Brazilian motorcycle wheelie game Projeto Grau 2. Players browse other people's bike designs by model, tap to download, and import them into the game. It launched on Google Play in Oct 18, hit 390K installs by Nov 6, and climbed to #4 on the Brazil Social Top Free chart. It moved fast not because the product is so good, but because the host game is blowing up, and the game's boss is a TikTok creator with 477K followers himself. Outsiders copying this get stuck on exactly those two things.

A demand created by MT-07

On Oct 30, the TikTok account @hard012_ posted a video: "PG2 new version is out, with MT-07 added." 737k views. The person posting is hard012, CEO of Insanity Group, the company that makes Projeto Grau 2.

When a new vehicle drops, the first thing players want is paint jobs. Over the next few days, "falta a MT-07" (no MT-07 yet) kept showing up in Skins App's Google Play reviews: on Nov 2, "missing MT 07 paint jobs"; on Nov 3, "lots of nice stickers, just no MT 07"; another four-star review: "good app, too bad there are no MT-07 skins." On Nov 2, hard012 posted "New features in APP DE SKINS" (340k views), and the comments were the same: "when are the MT 07 skins coming?" "Just the MT 07 stickers left," mixed in with a pile of "add KTM 1290," "add Ducati," "add multiplayer."

Players want ready-made, good-looking paint jobs they can use directly on their own bike, and this app is where they get them.

What it is

The store page spells it out: browse a feed and search paint jobs by bike model; each post shows a preview, the author, likes and downloads; download a .pg2moto file to import into the game; or export your own .pg2moto from the game, add an image, and upload it for review before it's published. You need an account to post and like.

.pg2moto is the game's own file format: Projeto Grau 2 lets players change every part's colors and images, then export the result as this file. So both the demand and the file format come from the game, and this app just pulls out the sharing and downloading part as its own product.

Money comes only from banner ads, with no in-app purchases. The store page says importing, publishing and downloading don't require watching ads, but several reviews from late October to early November mentioned "you have to watch an ad to download a paint job," so the step was probably removed in a later version (inferred).

One review puts its use most plainly: "Great for people who can't cut out images. No need to crop photos yourself, just download the decal." (Google Play review, 11-01)

Where the volume comes from

It grew with the game. Projeto Grau 2 hit Google Play in Oct 10; in Nov 6 it got 2.8M installs, gained 1.67M in a week, and reached #1 on the free chart for simulation games in Brazil and Argentina. Skins App's jump days line up exactly with the game's: in Oct, the game gained 440k and Skins gained 100k (31); in Nov, the game gained 770k and Skins gained 160k (3). (Google Play install numbers, 10-29 to 11-06.) By this math, about 1 out of every 7 game players had also installed it.

The founder drives traffic himself. hard012 has 477k followers and 5.64M likes on TikTok, and 794k followers on Instagram, with "CEO @insanity.group" in his bio. On Oct 23, he posted "Skins Projeto Grau 2 is out on Android and iOS," 860k views; the Oct 28 app update video got 470k; the Nov 2 new-features video got 340k. He posts game videos almost daily, with single videos getting 130k to 740k views (TikTok, 11-06). The company website insanitygroup.com.br lists just two products: the game and this app.

Players relay the tutorials. A batch of smaller accounts on TikTok teach "how to import paint jobs into the game": saymon.edmundo has 412k views, pg2.sk1ns 476k, guidedbygod77777 288k, and one video shows "NOME: SKINS PROJETO GRAU 2" on screen, telling viewers to search the store. The app name is "game name + Skins," so anyone searching for the game can easily find it too.

Paid acquisition: No evidence of ad spend found, but at this scale, with the host game driving installs, it doesn't need to be paying.

Who it's competing with

There's no solid app competitor for this exact thing. The official offering ranks first in search, format compatibility is guaranteed, and third parties can't win that spot.

Looking wider: on Google Play, there are over twenty Brazilian motorcycle games with "Grau" in the name. MX Grau has 29.2M installs, the predecessor Projeto Grau 21.2M, 157 Grau 7.58M, Menor do Grau 2 3.91M (Google Play install numbers, 11-06). Among these games, only Projeto Grau 2 has a standalone skin community app; the only third-party one I found is Skins Pocket Grau, with 15k installs.

What it's worth

Not disclosed. It only has banner ads, and ad rates in Brazil are low, so 390k installs probably means a few thousand dollars a month (inferred, unverified). For the developer, this money is a bonus; the bigger value is holding another social chart spot, capturing brand-name searches, and giving players one more reason to open something every day.

Its lifespan depends mainly on the game: when the game's popularity falls, it falls too. The negative reviews cluster on compatibility issues like "downloads come up as black images," "won't import," and "file turned into .bin," which suggests the file format and import flow are still being smoothed out.

If it were you

Verdict (C): This app is hard to replicate. Its traffic comes from the game developer's own game and the CEO's personal creator account, neither of which outsiders can access. The official side is already in, so launching a third-party paint-job app for this same game has almost no room. What's worth learning is the approach itself: for a product where users create content, split sharing out into its own standalone app.

Who it suits: Developers with a game or tool where players already modify, customize or build things, who split "sharing creations" into a separate app placed in the social category, adding one more chart spot and ad revenue; or creator-style developers who already have fans in a particular community.

Who it doesn't suit: Outsiders wanting to build a third-party skin app for someone else's hit game. There's no official file format, so you're stuck with screenshots and stitched-together textures, which loses badly next to the official app; if the host updates its format, your content is all useless.

How to build it: If you're the author of a game or tool: first make the product support importing and exporting its own file format, so community content has a standard container; then build a minimal feed with search by item or vehicle model, preview, likes and download counts, and one-tap handoff back to the main product; moderate content before publishing, and monetize with banners only. If you're an outsider looking for a spot the official side hasn't claimed: among those twenty-plus Grau games in Brazil, the ones that have file export but no official sharing app are worth installing one by one (not checked individually; before building, confirm the game supports import and the developer doesn't object).

How to get users: Put an entry point in the main product and mention it in update videos. The cheapest route is to have players who make paint jobs spread it for you: they already post "how to import" tutorials on TikTok, and naming the app "game name + Skins" lets them tell others to search the store.

When to get in: Track the host game's popularity. The first month or two after a game breaks out is the window; Projeto Grau 2 this round has already been taken by the official side, so for other games you need to move before the developer thinks of it.

What would show you're wrong: ① Skins App's weekly new installs drop below 5% of the game's while the game keeps growing: that means players don't need a separate sharing app, and an in-game entry point is enough; ② Other Grau games release official skin apps within a month or two that grow just as well: that means this approach gets copied by each developer, leaving outsiders even less room; ③ A third-party paint-job app on PG2 reaches 100k+ installs: that means there's room beyond the official side, and the "can't replicate" verdict above needs revising.

Data and sources

• Install numbers, chart rankings, reviews: public Google Play data, 2026-10-29 to 11-06.
• Store pages: play.google.com/store/apps/details?id=com.InsanityGroup.SkinsProjetoGrau2 and the Projeto Grau 2 store page (accessed 11-06).
• iOS: public App Store info (id 6818339091), 11-06.
• TikTok: @hard012_ profile videos and comments, search for "skins projeto grau 2" (11-06); Instagram @hard012_ profile.
• Official site insanitygroup.com.br; the predecessor's official Discord; the williangamer.com paint-job pack page.
• Where you see "inferred," "estimated" or "unverified," it means inference, estimation, or no direct evidence was found. Whether they buy ads, whether there's an in-game entry point, and retention and ad revenue data have not been made public.