diff --git a/HEADER b/HEADER
new file mode 100644
index 0000000..126ab6a
--- /dev/null
+++ b/HEADER
@@ -0,0 +1,19 @@
+Stargate - A portal plugin for Bukkit
+Copyright (C) 2011 Shaun (sturmeh)
+Copyright (C) 2011 Dinnerbone
+Copyright (C) 2011-2013 Steven "Drakia" Scott <Contact@TheDgtl.net>
+Copyright (C) 2015-2020 Michael Smith (PseudoKnight)
+Copyright (C) 2021-2022 Kristian Knarvik (EpicKnarvik97)
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
\ No newline at end of file
diff --git a/README.md b/README.md
index 86cb561..4a4ebcd 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,11 @@ This was originally TheDgtl's Bukkit port of the Stargate plugin for hMod by Din
 of [PseudoKnight's fork](https://github.com/PseudoKnight/Stargate-Bukkit). This fork's main purpose is to create a clean
 version of Stargate compliant with Spigot 1.17, even if it means changing the entire project's previous structure.
 
+## License
+
+Stargate is licensed under GNU Lesser General Public License. This includes every source and resource file. See the
+HEADER file for a more detailed license description.
+
 ## Migration
 
 This plugin should be compatible with configurations from the Stargate plugin all the way back. The nethergate.gate
diff --git a/src/main/java/net/knarcraft/stargate/Stargate.java b/src/main/java/net/knarcraft/stargate/Stargate.java
index be35747..b9ed27d 100644
--- a/src/main/java/net/knarcraft/stargate/Stargate.java
+++ b/src/main/java/net/knarcraft/stargate/Stargate.java
@@ -39,6 +39,30 @@ import java.util.Queue;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+/*
+Stargate - A portal plugin for Bukkit
+Copyright (C) 2011 Shaun (sturmeh)
+Copyright (C) 2011 Dinnerbone
+Copyright (C) 2011-2013 Steven "Drakia" Scott <Contact@TheDgtl.net>
+Copyright (C) 2015-2020 Michael Smith (PseudoKnight)
+Copyright (C) 2021-2022 Kristian Knarvik (EpicKnarvik97)
+
+The following license notice applies to all source and resource files in the Stargate project:
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 /**
  * The main class of the Stargate plugin
  */