diff --git a/README.md b/README.md
index 4c1c296..9e3f5b7 100644
--- a/README.md
+++ b/README.md
@@ -6,15 +6,12 @@ This application allows you to AFK mine timed Twitch drops, without having to wo
 
 - Stream-less drop mining - save on bandwidth.
 - Sharded websocket connection, allowing for tracking up to `8*50-2=398` channels at the same time.
+- Automatic drop campaigns discovery based on linked accounts (requires you to do [account linking](https://www.twitch.tv/drops/campaigns) yourself though)
 - Stream tags and drop campaign validation, so you don't end up watching a stream that can't earn you the drop.
 - Channel stream switching, when the one you were currently watching goes offline.
 - Cookie saving between sessions, so you don't need to login every time.
 - Mining is stopped automatically when the last available drop has been mined.
 
-**Not managed / TODO / manual:**
-
-- Adding additional drop campaigns from other games to your inventory (requires you to do [account linking](https://www.twitch.tv/drops/campaigns) yourself)
-
 **Usage:**
 
 - Download the [lastest release](https://github.com/DevilXD/TwitchDropsMiner/releases) - it's recommended to keep it in the folder it comes with.
@@ -32,7 +29,6 @@ This application allows you to AFK mine timed Twitch drops, without having to wo
 
 ### "No active campaigns to mine drops for."
 
-- Check your [inventory page](https://www.twitch.tv/drops/inventory) for in-progress campaigns.
-- If there's none, use the [campaigns page](https://www.twitch.tv/drops/campaigns) to link your account to the campaign's game of choice.
-- If your account is linked but the [inventory page](https://www.twitch.tv/drops/inventory) still doesn't include the campaign, go back to the [campaigns page](https://www.twitch.tv/drops/campaigns), expand the game of choice's campaign, and in the "How to Earn the Drop" section, click on "Go to a participating live channel" (or select one of the channels it lists) and make sure to watch the stream for at least one minute - this will activate the campaign. You can verify the campaign's activation on the [inventory page](https://www.twitch.tv/drops/inventory).
-- If there are any in-progress campaigns, make sure that they're started and not expired. You can check when a campaign starts by hovering over the very first drop in the campaign.
+- Check your [inventory page](https://www.twitch.tv/drops/inventory) for in-progress campaigns - make sure you're not looking at upcoming campaigns. You can check when a campaign starts by hovering over the very first drop in the campaign.
+- Make sure to link your account on the [campaigns page](https://www.twitch.tv/drops/campaigns), to the campaign's game of choice.
+- Once properly linked, the game should become available in the application's Game Selector.
diff --git a/inventory.py b/inventory.py
index 71748a7..1418333 100644
--- a/inventory.py
+++ b/inventory.py
@@ -2,7 +2,7 @@ from __future__ import annotations
 
 from datetime import datetime
 from functools import cached_property
-from typing import Optional, List, Dict, TYPE_CHECKING
+from typing import Optional, List, Dict, Set, TYPE_CHECKING
 
 from constants import JsonType, GQL_OPERATIONS
 
@@ -39,7 +39,7 @@ class Game:
 
 
 class BaseDrop:
-    def __init__(self, campaign: DropsCampaign, data: JsonType):
+    def __init__(self, campaign: DropsCampaign, data: JsonType, claimed_benefits: Set[str]):
         self._twitch: Twitch = campaign._twitch
         self.id: str = data["id"]
         self.name: str = data["name"]
@@ -47,9 +47,13 @@ class BaseDrop:
         self.rewards: List[str] = [b["benefit"]["name"] for b in data["benefitEdges"]]
         self.starts_at: datetime = datetime.strptime(data["startAt"], "%Y-%m-%dT%H:%M:%SZ")
         self.ends_at: datetime = datetime.strptime(data["endAt"], "%Y-%m-%dT%H:%M:%SZ")
-        # If claim_id is not None, we can use it to claim the drop
-        self.claim_id: Optional[str] = data["self"]["dropInstanceID"]
-        self.is_claimed: bool = data["self"]["isClaimed"]
+        self.claim_id: Optional[str] = None
+        self.is_claimed: bool = False
+        if "self" in data:
+            self.claim_id = data["self"]["dropInstanceID"]
+            self.is_claimed = data["self"]["isClaimed"]
+        elif all(b["benefit"]["id"] in claimed_benefits for b in data["benefitEdges"]):
+            self.is_claimed = True
         self._precondition_drops: List[str] = [d["id"] for d in (data["preconditionDrops"] or [])]
 
     def __repr__(self) -> str:
@@ -101,10 +105,10 @@ class BaseDrop:
         """
         Returns True if the claim succeeded, False otherwise.
         """
-        if not self.can_claim:
-            return False
         if self.is_claimed:
             return True
+        if not self.can_claim:
+            return False
         response = await self._twitch.gql_request(
             GQL_OPERATIONS["ClaimDrop"].with_variables(
                 {"input": {"dropInstanceID": self.claim_id}}
@@ -125,9 +129,11 @@ class BaseDrop:
 
 
 class TimedDrop(BaseDrop):
-    def __init__(self, campaign: DropsCampaign, data: JsonType):
-        super().__init__(campaign, data)
-        self.current_minutes: int = data["self"]["currentMinutesWatched"]
+    def __init__(self, campaign: DropsCampaign, data: JsonType, claimed_benefits: Set[str]):
+        super().__init__(campaign, data, claimed_benefits)
+        self.current_minutes: int = 0
+        if "self" in data:
+            self.current_minutes = data["self"]["currentMinutesWatched"]
         self.required_minutes: int = data["requiredMinutesWatched"]
         if self.is_claimed:
             # claimed drops report 0 current minutes, so we need to make a correction
@@ -178,7 +184,7 @@ class TimedDrop(BaseDrop):
 
 
 class DropsCampaign:
-    def __init__(self, twitch: Twitch, data: JsonType):
+    def __init__(self, twitch: Twitch, data: JsonType, claimed_benefits: Set[str]):
         self._twitch: Twitch = twitch
         self.id: str = data["id"]
         self.name: str = data["name"]
@@ -190,7 +196,8 @@ class DropsCampaign:
         if allowed["channels"] is not None:
             self.allowed_channels.extend(ch["name"] for ch in allowed["channels"])
         self.timed_drops: Dict[str, TimedDrop] = {
-            d["id"]: TimedDrop(self, d) for d in data["timeBasedDrops"]
+            drop_data["id"]: TimedDrop(self, drop_data, claimed_benefits)
+            for drop_data in data["timeBasedDrops"]
         }
 
     def __repr__(self) -> str:
diff --git a/twitch.py b/twitch.py
index d263009..4efc933 100644
--- a/twitch.py
+++ b/twitch.py
@@ -9,7 +9,7 @@ from time import time
 from itertools import chain
 from functools import partial
 from typing import (
-    Callable, Iterable, Optional, Union, List, Dict, Generic, TypeVar, cast, TYPE_CHECKING
+    Optional, Union, List, Dict, Set, Callable, Iterable, Generic, TypeVar, cast, TYPE_CHECKING
 )
 
 try:
@@ -697,13 +697,42 @@ class Twitch:
             gql_logger.debug(f"GQL Response: {response_json}")
             return response_json
 
-    async def fetch_inventory(self) -> None:
-        response = await self.gql_request(GQL_OPERATIONS["Inventory"])
-        inventory = response["data"]["currentUser"]["inventory"]["dropCampaignsInProgress"] or []
-        campaigns = sorted(
-            (DropsCampaign(self, data) for data in inventory),
-            key=lambda c: c.ends_at,
+    async def fetch_campaign(self, campaign_id: str, claimed_benefits: Set[str]) -> DropsCampaign:
+        response = await self.gql_request(
+            GQL_OPERATIONS["CampaignDetails"].with_variables(
+                {"channelLogin": str(self._user_id), "dropID": campaign_id}
+            )
         )
+        return DropsCampaign(self, response["data"]["user"]["dropCampaign"], claimed_benefits)
+
+    async def fetch_inventory(self) -> None:
+        # fetch all available campaign IDs, that are currently ACTIVE and account is connected
+        response = await self.gql_request(GQL_OPERATIONS["Campaigns"])
+        data = response["data"]["currentUser"]["dropCampaigns"] or []
+        available_campaigns: Set[str] = set(
+            c["id"] for c in data
+            if c["status"] == "ACTIVE" and c["self"]["isAccountConnected"]
+        )
+        # fetch in-progress campaigns (inventory)
+        response = await self.gql_request(GQL_OPERATIONS["Inventory"])
+        inventory = response["data"]["currentUser"]["inventory"]
+        ongoing_campaigns = inventory["dropCampaignsInProgress"] or []
+        # this contains claimed benefit edge IDs, not drop IDs
+        claimed_benefits: Set[str] = set(d["id"] for d in inventory["gameEventDrops"])
+        campaigns: List[DropsCampaign] = [
+            DropsCampaign(self, campaign_data, claimed_benefits)
+            for campaign_data in ongoing_campaigns
+        ]
+        # filter out in-progress campaigns from all available campaigns,
+        # since we already have all information needed for them
+        for campaign in campaigns:
+            available_campaigns.discard(campaign.id)
+        # add campaigns that remained, that can be earned but are not in-progress yet
+        for campaign_id in available_campaigns:
+            campaign = await self.fetch_campaign(campaign_id, claimed_benefits)
+            if any(drop.can_earn for drop in campaign.timed_drops.values()):
+                campaigns.append(campaign)
+        campaigns.sort(key=lambda c: c.ends_at)
         self.inventory = campaigns
 
     def get_drop(self, drop_id: str) -> Optional[TimedDrop]: