diff --git a/pyproject.toml b/pyproject.toml
index 88791a82..27278001 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,7 @@
 
 [tool.poetry]
     name = "royalpack"
-    version = "5.13.1"
+    version = "5.13.2"
     description = "A Royalnet command pack for the Royal Games community"
     authors = ["Stefano Pigozzi <ste.pigozzi@gmail.com>"]
     license = "AGPL-3.0+"
@@ -23,8 +23,8 @@
     riotwatcher = "^3.0.0"
     royalspells = "^3.2"
     steam = "*"
-sqlalchemy = "^1.3.18"
-bcrypt = "^3.1.7"
+    sqlalchemy = "^1.3.18"
+    bcrypt = "^3.1.7"
 
     [tool.poetry.dependencies.royalnet]
         version = "~5.10.4"
diff --git a/royalpack/commands/__init__.py b/royalpack/commands/__init__.py
index 4088121c..eb4d5a1b 100644
--- a/royalpack/commands/__init__.py
+++ b/royalpack/commands/__init__.py
@@ -38,6 +38,7 @@ from .steampowered import SteampoweredCommand
 from .treasure import TreasureCommand
 from .trivia import TriviaCommand
 from .userinfo import UserinfoCommand
+from .osu import OsuCommand
 
 # Enter the commands of your Pack here!
 available_commands = [
@@ -80,6 +81,7 @@ available_commands = [
     TreasureCommand,
     TriviaCommand,
     UserinfoCommand,
+    OsuCommand,
 ]
 
 # Don't change this, it should automatically generate __all__
diff --git a/royalpack/commands/osu.py b/royalpack/commands/osu.py
new file mode 100644
index 00000000..dff74519
--- /dev/null
+++ b/royalpack/commands/osu.py
@@ -0,0 +1,125 @@
+from typing import *
+import itsdangerous
+import aiohttp
+
+from royalnet.backpack import tables as rbt
+import royalnet.commands as rc
+import royalnet.utils as ru
+
+from .abstract.linker import LinkerCommand
+from ..types import Updatable
+from ..tables import Osu
+from ..stars.api_auth_login_osu import ApiAuthLoginOsuStar
+
+
+class OsuCommand(LinkerCommand):
+    name = "osu"
+
+    description = "Connetti e sincronizza il tuo account di osu!"
+
+    @property
+    def client_id(self):
+        return self.config[self.name]['client_id']
+
+    @property
+    def client_secret(self):
+        return self.config[self.name]['client_secret']
+
+    @property
+    def base_url(self):
+        return self.config['base_url']
+
+    @property
+    def secret_key(self):
+        return self.config['secret_key']
+
+    async def get_updatables_of_user(self, session, user: rbt.User) -> List[Osu]:
+        return user.osu
+
+    async def get_updatables(self, session) -> List[Osu]:
+        return await ru.asyncify(session.query(self.alchemy.get(Osu)).all)
+
+    async def create(self,
+                     session,
+                     user: rbt.User,
+                     args: rc.CommandArgs,
+                     data: Optional[rc.CommandData] = None) -> Optional[Osu]:
+        serializer = itsdangerous.URLSafeSerializer(self.secret_key, salt="osu")
+        # TODO: Ensure the chat the link is being sent in is secure!!!
+        await data.reply("🔑 [b]Login necessario[/b]\n"
+                         f"[url=https://osu.ppy.sh/oauth/authorize"
+                         f"?client_id={self.client_id}"
+                         f"&redirect_uri={self.base_url}{ApiAuthLoginOsuStar.path}"
+                         f"&response_type=code"
+                         f"&state={serializer.dumps(user.uid)}]"
+                         f"Connetti account di osu! a {user.username}"
+                         f"[/url]")
+        return None
+
+    async def update(self, session, obj: Osu, change: Callable[[str, Any], Awaitable[None]]):
+        await obj.refresh_if_expired(client_id=self.client_id,
+                                     client_secret=self.client_secret,
+                                     base_url=self.base_url,
+                                     path=ApiAuthLoginOsuStar.path)
+        async with aiohttp.ClientSession(headers={"Authorization": f"Bearer {obj.access_token}"}) as session:
+            async with session.get("https://osu.ppy.sh/api/v2/me/osu") as response:
+                m = await response.json()
+                obj.avatar_url = m["avatar_url"]
+                obj.username = m["username"]
+                if "statistics" in m:
+                    await change("standard_pp", m["statistics"].get("pp"))
+            async with session.get("https://osu.ppy.sh/api/v2/me/taiko") as response:
+                m = await response.json()
+                if "statistics" in m:
+                    await change("taiko_pp", m["statistics"].get("pp"))
+            async with session.get("https://osu.ppy.sh/api/v2/me/fruits") as response:
+                m = await response.json()
+                if "statistics" in m:
+                    await change("catch_pp", m["statistics"].get("pp"))
+            async with session.get("https://osu.ppy.sh/api/v2/me/mania") as response:
+                m = await response.json()
+                if "statistics" in m:
+                    await change("mania_pp", m["statistics"].get("pp"))
+
+    async def on_increase(self, session, obj: Osu, attribute: str, old: Any, new: Any) -> None:
+        if attribute == "standard_pp":
+            await self.notify(f"📈 [b]{obj.user}[/b] è salito a [b]{new:.0f}pp[/b] su [i]osu![/i]! Congratulazioni!")
+        elif attribute == "taiko_pp":
+            await self.notify(f"📈 [b]{obj.user}[/b] è salito a [b]{new:.0f}pp[/b] su [i]osu!taiko[/i]! Congratulazioni!")
+        elif attribute == "catch_pp":
+            await self.notify(f"📈 [b]{obj.user}[/b] è salito a [b]{new:.0f}pp[/b] su [i]osu!catch[/i]! Congratulazioni!")
+        elif attribute == "mania_pp":
+            await self.notify(f"📈 [b]{obj.user}[/b] è salito a [b]{new:.0f}pp[/b] su [i]osu!mania[/i]! Congratulazioni!")
+
+    async def on_unchanged(self, session, obj: Osu, attribute: str, old: Any, new: Any) -> None:
+        pass
+
+    async def on_decrease(self, session, obj: Osu, attribute: str, old: Any, new: Any) -> None:
+        if attribute == "standard_pp":
+            await self.notify(f"📉 [b]{obj.user}[/b] è sceso a [b]{new:.0f}pp[/b] su [i]osu![/i].")
+        elif attribute == "taiko_pp":
+            await self.notify(f"📉 [b]{obj.user}[/b] è sceso a [b]{new:.0f}pp[/b] su [i]osu!taiko[/i].")
+        elif attribute == "catch_pp":
+            await self.notify(f"📉 [b]{obj.user}[/b] è sceso a [b]{new:.0f}pp[/b] su [i]osu!catch[/i].")
+        elif attribute == "mania_pp":
+            await self.notify(f"📉 [b]{obj.user}[/b] è sceso a [b]{new:.0f}pp[/b] su [i]osu!mania[/i].")
+
+    async def on_first(self, session, obj: Osu, attribute: str, old: None, new: Any) -> None:
+        if attribute == "standard_pp":
+            await self.notify(f"⭐️ [b]{obj.user}[/b] ha guadagnato i suoi primi [b]{new:.0f}pp[/b] su [i]osu![/i]!")
+        elif attribute == "taiko_pp":
+            await self.notify(f"⭐️ [b]{obj.user}[/b] ha guadagnato i suoi primi [b]{new:.0f}pp[/b] su [i]osu!taiko[/i]!")
+        elif attribute == "catch_pp":
+            await self.notify(f"⭐️ [b]{obj.user}[/b] ha guadagnato i suoi primi [b]{new:.0f}pp[/b] su [i]osu!catch[/i]!")
+        elif attribute == "mania_pp":
+            await self.notify(f"⭐️ [b]{obj.user}[/b] ha guadagnato i suoi primi [b]{new:.0f}pp[/b] su [i]osu!mania[/i]!")
+
+    async def on_reset(self, session, obj: Osu, attribute: str, old: Any, new: None) -> None:
+        if attribute == "standard_pp":
+            await self.notify(f"⬜️ [b]{obj.user}[/b] non è più classificato su [i]osu![/i].")
+        elif attribute == "taiko_pp":
+            await self.notify(f" ⬜️[b]{obj.user}[/b] non è più classificato su [i]osu!taiko[/i].")
+        elif attribute == "catch_pp":
+            await self.notify(f"⬜️ [b]{obj.user}[/b] non è più classificato su [i]osu!catch[/i].")
+        elif attribute == "mania_pp":
+            await self.notify(f"⬜️ [b]{obj.user}[/b] non è più classificato su [i]osu!mania[/i].")
diff --git a/royalpack/stars/__init__.py b/royalpack/stars/__init__.py
index 9676dbf8..07a22617 100644
--- a/royalpack/stars/__init__.py
+++ b/royalpack/stars/__init__.py
@@ -13,6 +13,7 @@ from .api_cvstats_avg import ApiCvstatsAvgStar
 from .api_user_ryg import ApiUserRygStar
 from .api_user_ryg_list import ApiUserRygListStar
 from .api_user_avatar import ApiUserAvatarStar
+from .api_auth_login_osu import ApiAuthLoginOsuStar
 
 # Enter the PageStars of your Pack here!
 available_page_stars = [
@@ -30,6 +31,7 @@ available_page_stars = [
     ApiUserRygStar,
     ApiUserRygListStar,
     ApiUserAvatarStar,
+    ApiAuthLoginOsuStar,
 ]
 
 # Don't change this, it should automatically generate __all__
diff --git a/royalpack/stars/api_auth_login_osu.py b/royalpack/stars/api_auth_login_osu.py
new file mode 100644
index 00000000..ac3ba1a0
--- /dev/null
+++ b/royalpack/stars/api_auth_login_osu.py
@@ -0,0 +1,99 @@
+import royalnet.utils as ru
+import royalnet.backpack.tables as rbt
+import royalnet.constellation.api as rca
+import royalnet.constellation.api.apierrors as rcae
+import itsdangerous
+import aiohttp
+import aiohttp.client_exceptions
+import datetime
+from ..types import oauth_refresh
+from ..tables import Osu, FiorygiTransaction
+
+
+class ApiAuthLoginOsuStar(rca.ApiStar):
+    path = "/api/auth/login/osu/v1"
+
+    parameters = {
+        "get": {
+            "code": "The code returned by the osu! API.",
+            "state": "(Optional) The state payload generated by the osu! command to link a new account. "
+                     "If missing, just login."
+        }
+    }
+
+    auth = {
+        "get": False,
+    }
+
+    tags = ["auth"]
+
+    @property
+    def client_id(self):
+        return self.config['osu']['client_id']
+
+    @property
+    def client_secret(self):
+        return self.config['osu']['client_secret']
+
+    @property
+    def base_url(self):
+        return self.config['base_url']
+
+    @property
+    def secret_key(self):
+        return self.config['secret_key']
+
+    @rca.magic
+    async def get(self, data: rca.ApiData) -> ru.JSON:
+        """Login to Royalnet with your osu! account."""
+        OsuT = self.alchemy.get(Osu)
+        TokenT = self.alchemy.get(rbt.Token)
+
+        code = data.str("code")
+        state = data.str("state", optional=True)
+
+        if state is not None:
+            serializer = itsdangerous.URLSafeSerializer(self.config["secret_key"], salt="osu")
+            uid = serializer.loads(state)
+            user = await rbt.User.find(self.alchemy, data.session, uid)
+        else:
+            user = None
+
+        try:
+            t = await oauth_refresh(url="https://osu.ppy.sh/oauth/token",
+                                    client_id=self.client_id,
+                                    client_secret=self.client_secret,
+                                    redirect_uri=f"{self.base_url}{self.path}",
+                                    refresh_code=code)
+        except aiohttp.client_exceptions.ClientResponseError:
+            raise rca.ForbiddenError("osu! API returned an error in the OAuth token exchange")
+
+        async with aiohttp.ClientSession(headers={"Authorization": f"Bearer {t['access_token']}"}) as session:
+            async with session.get("https://osu.ppy.sh/api/v2/me/") as response:
+                m = await response.json()
+
+        if user is not None:
+            osu = OsuT(
+                user=user,
+                access_token=t["access_token"],
+                refresh_token=t["refresh_token"],
+                expiration_date=datetime.datetime.now() + datetime.timedelta(seconds=t["expires_in"]),
+                osu_id=m["id"],
+                username=m["username"]
+            )
+
+            data.session.add(osu)
+        else:
+            osu = await ru.asyncify(
+                data.session.query(OsuT).filter_by(osu_id=m["id"]).all
+            )
+            if osu is None:
+                raise rcae.ForbiddenError("Unknown osu! account")
+            user = osu.user
+
+        token: rbt.Token = TokenT.generate(alchemy=self.alchemy, user=user, expiration_delta=datetime.timedelta(days=7))
+
+        data.session.add(token)
+        await data.session_commit()
+
+        return token.json()
diff --git a/royalpack/tables/__init__.py b/royalpack/tables/__init__.py
index 6eac5697..e951bb5c 100644
--- a/royalpack/tables/__init__.py
+++ b/royalpack/tables/__init__.py
@@ -18,6 +18,7 @@ from .mmevents import MMEvent
 from .mmresponse import MMResponse
 from .cvstats import Cvstats
 from .treasure import Treasure
+from .osu import Osu
 
 # Enter the tables of your Pack here!
 available_tables = [
@@ -40,6 +41,7 @@ available_tables = [
     MMResponse,
     Cvstats,
     Treasure,
+    Osu,
 ]
 
 # Don't change this, it should automatically generate __all__
diff --git a/royalpack/tables/osu.py b/royalpack/tables/osu.py
new file mode 100644
index 00000000..99179a7d
--- /dev/null
+++ b/royalpack/tables/osu.py
@@ -0,0 +1,94 @@
+from typing import *
+import aiohttp
+import datetime
+from sqlalchemy import *
+from sqlalchemy.orm import relationship, backref
+from sqlalchemy.ext.declarative import declared_attr
+
+from ..types import Updatable, oauth_refresh
+
+
+# noinspection PyAttributeOutsideInit
+class Osu(Updatable):
+    __tablename__ = "osu"
+
+    @declared_attr
+    def user_id(self):
+        return Column(Integer, ForeignKey("users.uid"))
+
+    @declared_attr
+    def user(self):
+        return relationship("User", backref=backref("osu"))
+
+    @declared_attr
+    def access_token(self):
+        return Column(String, nullable=False)
+
+    @declared_attr
+    def refresh_token(self):
+        return Column(String, nullable=False)
+
+    @declared_attr
+    def expiration_date(self):
+        return Column(DateTime, nullable=False)
+
+    @declared_attr
+    def osu_id(self):
+        return Column(Integer, primary_key=True)
+
+    @declared_attr
+    def username(self):
+        return Column(String, nullable=False)
+
+    @declared_attr
+    def avatar_url(self):
+        return Column(String, nullable=False)
+
+    @declared_attr
+    def standard_pp(self):
+        return Column(Float)
+
+    @declared_attr
+    def taiko_pp(self):
+        return Column(Float)
+
+    @declared_attr
+    def catch_pp(self):
+        return Column(Float)
+
+    @declared_attr
+    def mania_pp(self):
+        return Column(Float)
+
+    async def refresh(self, *, client_id, client_secret, base_url, path):
+        j = await oauth_refresh(url="https://osu.ppy.sh/oauth/token",
+                                client_id=client_id,
+                                client_secret=client_secret,
+                                redirect_uri=f"{base_url}{path}",
+                                refresh_code=self.refresh_token)
+        self.access_token = j["access_token"]
+        self.refresh_token = j["refresh_token"]
+        self.expiration_date = datetime.datetime.now() + datetime.timedelta(seconds=j["expires_in"])
+
+    async def refresh_if_expired(self, *, client_id, client_secret, base_url, path):
+        if datetime.datetime.now() >= self.expiration_date:
+            await self.refresh(client_id=client_id, client_secret=client_secret, base_url=base_url, path=path)
+
+    def json(self) -> dict:
+        return {
+            "osu_id": self.osu_id,
+            "username": self.username,
+            "avatar_url": self.avatar_url,
+            "standard": {
+                "pp": self.standard_pp,
+            },
+            "taiko": {
+                "pp": self.taiko_pp,
+            },
+            "catch": {
+                "pp": self.catch_pp,
+            },
+            "mania": {
+                "pp": self.mania_pp,
+            },
+        }
diff --git a/royalpack/types/__init__.py b/royalpack/types/__init__.py
index ed67a89c..4e8f08a7 100644
--- a/royalpack/types/__init__.py
+++ b/royalpack/types/__init__.py
@@ -11,6 +11,7 @@ from .brawlhallametal import BrawlhallaMetal
 from .brawlhallarank import BrawlhallaRank
 from .pollmood import PollMood
 from .updatable import Updatable
+from .oauth_refresh import oauth_refresh
 
 
 __all__ = [
@@ -28,4 +29,5 @@ __all__ = [
     "BrawlhallaTier",
     "PollMood",
     "Updatable",
+    "oauth_refresh",
 ]
diff --git a/royalpack/types/oauth_refresh.py b/royalpack/types/oauth_refresh.py
new file mode 100644
index 00000000..62e3e6b2
--- /dev/null
+++ b/royalpack/types/oauth_refresh.py
@@ -0,0 +1,14 @@
+import aiohttp
+
+
+async def oauth_refresh(*, url, client_id, client_secret, redirect_uri, refresh_code):
+    async with aiohttp.ClientSession() as session:
+        async with session.post(url, data={
+            "client_id": client_id,
+            "client_secret": client_secret,
+            "code": refresh_code,
+            "grant_type": "authorization_code",
+            "redirect_uri": redirect_uri
+        }) as response:
+            j = await response.json()
+            return j