ReleasedReviewComix Harem
Android, BrowserFree
Project QT is a free-to-play puzzle RPG from xDNA, published by Nutaku, in which you collect a team of heroines and fight through puzzle-based, turn-based battles. It runs in a PC or mobile browser and as an Android app from Nutaku, and it has been live since May 2019. It is free with optional in-game purchases, and the animated adult scenes unlock as you progress.

In short
It is developed by xDNA and published by Nutaku Publishing, the publishing arm of the Nutaku adult games platform. It launched on May 15, 2019 and is still running live events in 2026, a long run for a free-to-play game.
The setup is light: a virus threatens a galaxy of heroines, and you team up with them to fight it, while also building a relationship with each one. Many of the characters are fantasy monster girls, such as slimes, wolves, gorgons and vampires. All characters are adults, and Nutaku states that everyone depicted on its site is 18 or older.
Short answer on who should try it: if you enjoy collection RPGs, it costs nothing to see whether the loop works for you. If you dislike gacha monetization, skip it, because that is the whole business model.
Nutaku describes the Project QT game as a blend of "puzzle mechanics and RPG turn-based combat". In practice, that means three layers.
Time-limited live events are the main source of new content, and a live event countdown was running on the Nutaku page when we checked. Newbie missions guide the first days. Relationship progress with each character unlocks their animated scenes, which are the reward the whole loop is built around.
Our take: this is a familiar free-to-play structure done competently. The puzzle battles add a little skill, the element system adds a little depth, and the rest is daily collecting. The community view in player discussions is that progression can feel grindy if you do not spend, which is typical for the genre; plan to play slowly or budget for purchases.
The cast is large. Nutaku's tags point to what you get: a harem-style cast, monster girls, character evolution, partial voice acting and animated scenes. The dialogue is flirtatious rather than story-heavy.
On content: Nutaku lists the game as uncensored, with explicit animated sexual content that unlocks through progression. We keep this review non-explicit. Expect the adult scenes to be the main reward, with the RPG as the route to them.
The game uses bright 2D anime-style art with animated character illustrations, which Nutaku's own page leans on hard as the selling point.
You play through Nutaku, and you need a free Nutaku account and an internet connection.
| Platform | How it works |
|---|---|
| PC browser | Play on the Nutaku page; nothing to install. Nutaku lists Windows 7 or 10 and recommends Google Chrome. |
| Mobile browser | Play on the same page from your phone's browser. |
| Android | A Project QT APK from Nutaku, downloaded on the device or on a computer and transferred. |
| iOS | Nutaku tags it "iOS Compatible"; we could not confirm a native iOS app, so expect to use the mobile browser. |
| Steam | No Steam release found |
In short, Project QT PC play means the browser: there is no Windows download to install. The browser version and the Android app both run through your Nutaku account. The help center also has a "My progress was reset!" article, so if you switch devices, check that you are logged in to the same account first.
Yes. There is no purchase price. Nutaku notes that free games may include in-game purchases, and in a gacha game that is where the money is made: spending speeds up summoning and upgrades. You can play without spending, but the pace will be slower. For games that are free without a shop attached, see our best free adult games list.
From Nutaku, yes, as far as any official store goes. Play in the browser on nutaku.net or install the Android APK from the button on the official game page. Avoid "mod APK" or "unlimited gems" downloads from other sites: they are unofficial and can carry malware. Keep the same caution you would with any sideloaded Android app. Our guide to how safe Steam adult games are covers the general principles behind trusted stores.
The game does not publish version numbers. The newest post in the news block on the Project QT Nutaku page is from September 27, 2023, a summer event announcement, so that feed looks stale. The game itself was clearly still running when we checked on September 30, 2026, with a live event countdown on the page. Treat the news section as out of date rather than the game as abandoned.
No. It is free to play on Nutaku, with optional in-game purchases.
Yes. Nutaku offers an Android APK download on the official game page. Install it only from there.
Not one we could confirm; use the mobile browser. Nutaku tags the game "iOS Compatible", but that appears to mean browser play.
No. We found no Steam release; it is a Nutaku game played in the browser or through the Android app.
Time-limited live events bring limited rewards and their own challenges. The official help center has an events overview and advice on which consumables to save for future events.
It costs nothing to find out. If you like collection RPGs and short daily sessions, it is a solid example. If gacha monetization bothers you, look at a paid game instead.
This is a competent free-to-play puzzle RPG with a big collectible cast and animated scenes as the reward. The battles have a bit more depth than you might expect, it runs anywhere with a browser, and it has lasted since 2019. It is also a gacha game through and through, so your enjoyment depends on how you feel about grinding or spending. For a different kind of free dating game, read our Crush Crush review, or browse all our game reviews.