diff --git a/.gitignore b/.gitignore
index 69a1846..ac2e6cf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,5 @@
 .godot
 dist
+*.uid
+*.remap
+*.import
diff --git a/core/itch_settings.gd b/core/itch_settings.gd
index 8c72918..bacffbd 100644
--- a/core/itch_settings.gd
+++ b/core/itch_settings.gd
@@ -18,6 +18,7 @@ const icon := preload("res://plugins/itch/assets/itch.svg")
 @onready var api_key_box: LineEdit = $%ApiKeyInput
 @onready var save_button: Button = $%SaveButton
 @onready var help_label: Label = $%HelpLabel
+@onready var filter_check: CheckBox = $%FilterUnsupported
 
 @onready var itch: ItchClient = get_tree().get_first_node_in_group("itch_client")
 
@@ -27,6 +28,8 @@ func _ready() -> void:
 	api_key_box.text = api_key
 	api_key_box.secret = true
 
+	filter_check.button_pressed = settings_manager.get_value("plugin.itch", "filter_unsupported", true) as bool
+
 	help_label.text = "Get an API key from https://itch.io/user/settings/api-keys"
 
 	_update_status()
@@ -34,6 +37,7 @@ func _ready() -> void:
 	itch.logged_in.connect(_on_login)
 
 	save_button.pressed.connect(_on_save_button)
+	filter_check.toggled.connect(_on_filter_toggled)
 
 
 func _update_status() -> void:
@@ -68,3 +72,13 @@ func _on_save_button() -> void:
 	if api_key == "":
 		return
 	itch.login_with_api_key(api_key)
+
+
+## Persists the platform filter and reloads the itch.io library so the
+## change applies without restarting. The setting is read back by
+## library_itch.gd on every library load, so toggling just re-filters.
+func _on_filter_toggled(pressed: bool) -> void:
+	settings_manager.set_value("plugin.itch", "filter_unsupported", pressed)
+	var library_manager := load("res://core/global/library_manager.tres") as LibraryManager
+	if library_manager:
+		library_manager.load_library("itch")
diff --git a/core/itch_settings.tscn b/core/itch_settings.tscn
index aacea83..9c201b7 100644
--- a/core/itch_settings.tscn
+++ b/core/itch_settings.tscn
@@ -42,6 +42,11 @@ layout_mode = 2
 autowrap_mode = 2
 text = "Get an API key from https://itch.io/user/settings/api-keys"
 
+[node name="FilterUnsupported" type="CheckBox" parent="VBoxContainer"]
+unique_name_in_owner = true
+layout_mode = 2
+text = "Only show games available on this platform"
+
 [node name="SaveButton" type="Button" parent="VBoxContainer"]
 unique_name_in_owner = true
 layout_mode = 2
diff --git a/core/library_itch.gd b/core/library_itch.gd
index e50fb72..2d2a28f 100644
--- a/core/library_itch.gd
+++ b/core/library_itch.gd
@@ -3,6 +3,8 @@ extends Library
 const ItchClient := preload("res://plugins/itch/core/itch_client.gd")
 const _apps_cache_file: String = "apps.json"
 
+var settings_manager := load("res://core/global/settings_manager.tres") as SettingsManager
+
 @onready var itch: ItchClient = get_tree().get_first_node_in_group("itch_client")
 
 ## The item currently being installed/updated/uninstalled. OGPU's InstallManager
@@ -84,13 +86,38 @@ func _on_install_progressed(_id: String, current: int, total: int) -> void:
 	install_progressed.emit(_active_item, float(current) / float(total))
 
 
+## Returns true unless the "only show games available on this platform"
+## filter is enabled and the game's platforms don't include the OS
+## OpenGamepadUI is running on. Games with no platform info at all (e.g.
+## HTML5) are kept, since there's nothing to filter on.
+func _game_available_on_current_platform(game: Dictionary) -> bool:
+	if not _filter_unsupported():
+		return true
+	var platforms: Dictionary = game.get("platforms", {})
+	if platforms.is_empty():
+		return true
+	var current := "windows"
+	if OS.get_name() == "Linux":
+		current = "linux"
+	elif OS.get_name() == "macOS":
+		current = "osx"
+	return not (platforms.get(current, "") as String).is_empty()
+
+
+func _filter_unsupported() -> bool:
+	return settings_manager.get_value("plugin.itch", "filter_unsupported", true) as bool
+
+
 ## Builds a LibraryLaunchItem for a game, or null when the entry isn't an
-## actual game (itch.io also hosts tools, assets, soundtracks, comics, ...).
+## actual game (itch.io also hosts tools, assets, soundtracks, comics, ...)
+## or is filtered out by the "available on this platform" setting.
 func _make_item(game: Dictionary, caves_by_game_id: Dictionary) -> Variant:
 	if game.is_empty():
 		return null
 	if game.get("classification", "game") != "game":
 		return null
+	if not _game_available_on_current_platform(game):
+		return null
 	var game_id: int = game.get("id", 0)
 	var cave: Dictionary = caves_by_game_id.get(game_id, {})
 
@@ -121,7 +148,11 @@ func _load_library(caching_flags: int = Cache.FLAGS.LOAD | Cache.FLAGS.SAVE) ->
 			logger.info("itch.io apps found in cache. Using cache.")
 			var items := [] as Array[LibraryLaunchItem]
 			for i in json_items:
-				items.append(LibraryLaunchItem.from_dict(i))
+				var item := LibraryLaunchItem.from_dict(i)
+				var game: Dictionary = item.metadata.get("game", {})
+				if not _game_available_on_current_platform(game):
+					continue
+				items.append(item)
 			_queue_boxart(items)
 			return items
 
diff --git a/plugin.json b/plugin.json
index 756cfa3..3bf4d0e 100644
--- a/plugin.json
+++ b/plugin.json
@@ -1,7 +1,7 @@
 {
   "plugin.id": "itch",
   "plugin.name": "itch.io",
-  "plugin.version": "0.1.8",
+  "plugin.version": "0.1.9",
   "plugin.min-api-version": "1.1.0",
   "plugin.link": "https://forge.thergic.ar/jose/itchio-opengamepadui-plugin",
   "plugin.source": "https://forge.thergic.ar/jose/itchio-opengamepadui-plugin",