diff --git a/.gitignore b/.gitignore
index cf3bef523..c780db20f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,3 +24,5 @@ mono_crash.*.json
 
 # Android ignores
 android/
+
+addons/godotsteam
diff --git a/src/Autoload/OpenSave.gd b/src/Autoload/OpenSave.gd
index 112038558..037fe503c 100644
--- a/src/Autoload/OpenSave.gd
+++ b/src/Autoload/OpenSave.gd
@@ -354,14 +354,14 @@ func open_v0_pxo_file(path: String, empty_project: bool) -> Project:
 func save_pxo_file(
 	path: String, autosave: bool, include_blended := false, project := Global.current_project
 ) -> bool:
-	if !autosave:
+	if not autosave:
 		project.name = path.get_file().trim_suffix(".pxo")
 	var serialized_data := project.serialize()
-	if !serialized_data:
+	if not serialized_data:
 		Global.popup_error(tr("File failed to save. Converting project data to dictionary failed."))
 		return false
 	var to_save := JSON.stringify(serialized_data)
-	if !to_save:
+	if not to_save:
 		Global.popup_error(tr("File failed to save. Converting dictionary to JSON failed."))
 		return false
 
@@ -450,6 +450,7 @@ func save_pxo_file(
 			Global.FileMenu.SAVE, tr("Save") + " %s" % path.get_file()
 		)
 		project_saved.emit()
+		SteamManager.set_achievement("ACH_SAVE")
 
 	save_project_to_recent_list(path)
 	return true
diff --git a/src/Classes/Drawers.gd b/src/Classes/Drawers.gd
index 1989572e2..669ab0bd7 100644
--- a/src/Classes/Drawers.gd
+++ b/src/Classes/Drawers.gd
@@ -77,3 +77,4 @@ func set_pixel(image: Image, position: Vector2i, color: Color, ignore_mirroring
 		var mirror_pos := mirrored_positions[i]
 		if project.can_pixel_get_drawn(mirror_pos) && not Tools.check_alpha_lock(image, mirror_pos):
 			drawers[i + 1].set_pixel(image, mirror_pos, color, color_op)
+	SteamManager.set_achievement("ACH_FIRST_PIXEL")
diff --git a/src/Classes/SteamManager.gd b/src/Classes/SteamManager.gd
new file mode 100644
index 000000000..5771897eb
--- /dev/null
+++ b/src/Classes/SteamManager.gd
@@ -0,0 +1,45 @@
+class_name SteamManager
+extends Node
+
+## A class that manages Steam-specific functionalities. Currently only unlocks achievements.
+## On non-Steam builds, this node gets automatically freed.
+
+## The Steam app id of Pixelorama.
+const APP_ID := 2779170
+## We are using a variable instead of the `Steam` singleton directly,
+## because it is not available in non-Steam builds.
+static var steam_class
+
+
+func _init() -> void:
+	if not ClassDB.class_exists(&"Steam"):
+		queue_free()
+		return
+	steam_class = ClassDB.instantiate(&"Steam")
+	OS.set_environment("SteamAppID", str(APP_ID))
+	OS.set_environment("SteamGameID", str(APP_ID))
+
+
+func _ready() -> void:
+	if not is_instance_valid(steam_class):
+		return
+	var response: Dictionary = steam_class.steamInitEx(true, APP_ID)
+	print(response)
+	if not steam_class.isSteamRunning():
+		print("Steam is not running!")
+		return
+	#var id: int = steam_class.getSteamID()
+	#var username: String = steam_class.getFriendPersonaName(id)
+
+
+## Unlocks an achievement on Steam based on its [param achievement_name].
+static func set_achievement(achievement_name: String) -> void:
+	if not is_instance_valid(steam_class):
+		return
+	if not steam_class.isSteamRunning():
+		return
+	var status: Dictionary = steam_class.getAchievement(achievement_name)
+	if status["achieved"]:
+		return
+	steam_class.setAchievement(achievement_name)
+	steam_class.storeStats()
diff --git a/src/Main.tscn b/src/Main.tscn
index 41fbeca46..0ab12774d 100644
--- a/src/Main.tscn
+++ b/src/Main.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=17 format=3 uid="uid://dbylw5k04ulp8"]
+[gd_scene load_steps=18 format=3 uid="uid://dbylw5k04ulp8"]
 
 [ext_resource type="Theme" uid="uid://bkb4syj8110el" path="res://assets/themes/dark/theme.tres" id="1"]
 [ext_resource type="Script" path="res://src/Main.gd" id="2"]
@@ -14,6 +14,7 @@
 [ext_resource type="PackedScene" uid="uid://c0nuukjakmai2" path="res://src/UI/Dialogs/TileModeOffsetsDialog.tscn" id="14"]
 [ext_resource type="PackedScene" uid="uid://c6fyrnyt3663o" path="res://src/UI/Timeline/TagProperties.tscn" id="14_fw6cf"]
 [ext_resource type="Script" path="res://src/HandleExtensions.gd" id="15_v0k2h"]
+[ext_resource type="Script" path="res://src/Classes/SteamManager.gd" id="17_k1xhp"]
 [ext_resource type="PackedScene" uid="uid://clbjfkdupw52l" path="res://src/UI/Timeline/CelProperties.tscn" id="17_ucs64"]
 [ext_resource type="PackedScene" uid="uid://clgu8wb5o6oup" path="res://src/UI/Dialogs/ExportDialog.tscn" id="39"]
 
@@ -110,11 +111,14 @@ visible = false
 
 [node name="ImageRequest" type="HTTPRequest" parent="."]
 
+[node name="SteamManager" type="Node" parent="."]
+script = ExtResource("17_k1xhp")
+
 [connection signal="files_selected" from="Dialogs/OpenSprite" to="." method="_on_OpenSprite_files_selected"]
 [connection signal="visibility_changed" from="Dialogs/OpenSprite" to="." method="_on_open_sprite_visibility_changed"]
 [connection signal="file_selected" from="Dialogs/SaveSprite" to="." method="_on_SaveSprite_file_selected"]
-[connection signal="visibility_changed" from="Dialogs/SaveSprite" to="." method="_on_save_sprite_visibility_changed"]
 [connection signal="visibility_changed" from="Dialogs/SaveSprite" to="." method="_can_draw_true"]
+[connection signal="visibility_changed" from="Dialogs/SaveSprite" to="." method="_on_save_sprite_visibility_changed"]
 [connection signal="confirmed" from="Dialogs/SaveSpriteHTML5" to="." method="save_project" binds= [""]]
 [connection signal="visibility_changed" from="Dialogs/SaveSpriteHTML5" to="." method="_can_draw_true"]
 [connection signal="visibility_changed" from="Dialogs/ExportDialog" to="." method="_can_draw_true"]
diff --git a/src/Preferences/PreferencesDialog.gd b/src/Preferences/PreferencesDialog.gd
index a2458d75c..827243408 100644
--- a/src/Preferences/PreferencesDialog.gd
+++ b/src/Preferences/PreferencesDialog.gd
@@ -328,6 +328,7 @@ func _ready() -> void:
 		if typeof(value) == TYPE_VECTOR2 or typeof(value) == TYPE_COLOR:
 			is_default = value.is_equal_approx(pref.default_value)
 		disable_restore_default_button(restore_default_button, is_default)
+	SteamManager.set_achievement("ACH_PREFERENCES")
 
 
 func _on_Preference_value_changed(value, pref: Preference, button: RestoreDefaultButton) -> void:
diff --git a/src/Tools/DesignTools/Eraser.gd b/src/Tools/DesignTools/Eraser.gd
index e5870e8ab..754b1200a 100644
--- a/src/Tools/DesignTools/Eraser.gd
+++ b/src/Tools/DesignTools/Eraser.gd
@@ -106,6 +106,7 @@ func draw_end(pos: Vector2i) -> void:
 		_draw_line = false
 
 	commit_undo()
+	SteamManager.set_achievement("ACH_ERASE_PIXEL")
 	cursor_text = ""
 	update_random_image()
 
diff --git a/src/UI/TopMenuContainer/TopMenuContainer.gd b/src/UI/TopMenuContainer/TopMenuContainer.gd
index a45630c5d..bbfeae307 100644
--- a/src/UI/TopMenuContainer/TopMenuContainer.gd
+++ b/src/UI/TopMenuContainer/TopMenuContainer.gd
@@ -834,6 +834,7 @@ func help_menu_id_pressed(id: int) -> void:
 			_popup_dialog(Global.control.splash_dialog)
 		Global.HelpMenu.ONLINE_DOCS:
 			OS.shell_open(DOCS_URL)
+			SteamManager.set_achievement("ACH_ONLINE_DOCS")
 		Global.HelpMenu.ISSUE_TRACKER:
 			OS.shell_open(ISSUES_URL)
 		Global.HelpMenu.OPEN_EDITOR_DATA_FOLDER:
@@ -844,5 +845,6 @@ func help_menu_id_pressed(id: int) -> void:
 			about_dialog.popup()
 		Global.HelpMenu.SUPPORT_PIXELORAMA:
 			OS.shell_open(SUPPORT_URL)
+			SteamManager.set_achievement("ACH_SUPPORT_DEVELOPMENT")
 		_:
 			_handle_metadata(id, help_menu)