- The software component of FXMaster is licensed under BSD 3-Clause.
- Jinker's Acid Line and Red Fire Cone video effects are borrowed from Jinker's Animated Art and are licensed as free for use.
- Jules and Ben's Witch Bolt effect is from [JB2A] and is licensed under CC BY-NC-SA-4.0.
- The Seagull sprites used in the Birds particle effect are from whtdragon.
- The control and tool icons are from [Font Awesome], licensed under the CC BY-4.0.
- The icons for particle effects are by Rexard and licensed under Rexard Game Dev Assets EULA.
- The rat sprites used in the Rats particle effect by crymoonster are licensed under CC BY-4.0.