Use a list for the games;

Preserves games sorting, and lets the campaigns return games in their active state order

gui.py

@@ -252,7 +252,7 @@ class GameSelector:
 
     def set_games(self, games: Iterable[Game]):
         self._games.clear()
-        self._games.update((str(g), g) for g in sorted(games, key=lambda g: g.name))
+        self._games.update((str(g), g) for g in games)
         self._list.delete(0, "end")
         self._list.insert("end", *self._games.keys())
         self._list.config(width=0)  # autoadjust listbox width

twitch.py

@@ -8,7 +8,7 @@ from yarl import URL
 from time import time
 from itertools import chain
 from functools import partial
-from typing import Any, Callable, Iterable, Optional, Union, List, Dict, Set, cast, TYPE_CHECKING
+from typing import Any, Callable, Iterable, Optional, Union, List, Dict, cast, TYPE_CHECKING
 
 try:
     import aiohttp
@@ -176,7 +176,7 @@ class Twitch:
             WebsocketTopic("User", "Drops", self._user_id, self.process_drops),
             WebsocketTopic("User", "CommunityPoints", self._user_id, self.process_points),
         ])
-        games: Set[Game] = set()
+        games: List[Game] = []
         selected_game: Optional[Game] = None
         self.change_state(State.INVENTORY_FETCH)
         while True:
@@ -189,8 +189,8 @@ class Twitch:
                         # we have no use in processing upcoming campaigns here
                         continue
                     for drop in campaign.timed_drops.values():
-                        if drop.can_earn:
+                        if drop.can_earn and (game := campaign.game) not in games:
-                            games.add(campaign.game)
+                            games.append(game)
                         if drop.can_claim:
                             await drop.claim()
                 self.change_state(State.GAME_SELECT)