diff --git a/app/flatpages/help/api.md b/app/flatpages/help/api.md
index 8113a2fd..7fef151f 100644
--- a/app/flatpages/help/api.md
+++ b/app/flatpages/help/api.md
@@ -189,6 +189,7 @@ Supported query parameters:
 * `tag`:  Filter by tags.
 * `flag`: Filter to show packages with [Content Flags](/help/content_flags/).
 * `game`: Filter by [Game Support](/help/game_support/), ex: `Wuzzy/mineclone2`. (experimental, doesn't show items that support every game currently).
+* `lang`: Filter by translation support, eg: `en`/`de`/`ja`/`zh_TW`.
 * `random`:  When present, enable random ordering and ignore `sort`.
 * `limit`:  Return at most `limit` packages.
 * `hide`:  Hide content based on [Content Flags](/help/content_flags/).
diff --git a/app/querybuilder.py b/app/querybuilder.py
index c50097ca..885739f9 100644
--- a/app/querybuilder.py
+++ b/app/querybuilder.py
@@ -52,7 +52,8 @@ class QueryBuilder:
 			ret = f"{self.search} - {ret}"
 
 		if self.game:
-			ret = gettext("%(package_type)s for %(game_name)s", package_type=ret, game_name=self.game.title)
+			meta = self.game.get_translated(load_desc=False)
+			ret = gettext("%(package_type)s for %(game_name)s", package_type=ret, game_name=meta["title"])
 
 		return ret
 
@@ -132,6 +133,8 @@ class QueryBuilder:
 		if self.game:
 			self.game = Package.get_by_key(self.game)
 
+		self.has_lang = args.get("lang")
+
 		if cookies and request.cookies.get("hide_nonfree") == "1":
 			self.hide_nonfree = True
 
@@ -197,6 +200,9 @@ class QueryBuilder:
 		if self.game:
 			query = query.filter(Package.supported_games.any(game=self.game, supports=True))
 
+		if self.has_lang:
+			query = query.filter(Package.translations.any(language_id=self.has_lang))
+
 		for tag in self.tags:
 			query = query.filter(Package.tags.any(Tag.id == tag.id))