- SFML by Laurent Gomila under zlib/png license.
- CMake SFML Project Template by SFML Contributors under Public Domain or MIT
- Simple Collision Detection for SFML 2 by Nick Koirala (original version), ahnonay (SFML2 compatibility), switchboy (single pixel test), and Paweł Syska (C++17 refactor + naming convention), licensed under zlib/png
- Free assets from Craftpix under their Freebie products file license
- 2D Pixel Dungeon Asset Pack v2.0 by Pixel-Poem on itch.io, licensed under the clause
This asset pack can be in free and commercial projects. You can modify it to suit your own needs. Credit is not necessary, but appreciated. You may not redistribute it or resell it. - Space Shooter (Redux, plus fonts and sounds), Licensed Under Creative Commons CC0 by Kenney Vleugels
- Xelu's Free Controller & Keyboards Prompts by Nicolae (Xelu) Berbece from Those Awesome Guys LLC, licensed under Creative Commons CC0
- Bebas Neue v2, licensed under SIL Open Font License, Version 1.1
- Sound effects using sfxr.me
- ambient buttons » btn121.wav, Licensed under CC BY 4.0, by junggle
- Clicks and switches » Click.wav, Licensed Under CC0 1.0, by kwahmah_02
- Snake's Authentic Gun Sounds, Licensed under a clause
Most of the sounds in this pack can either be used as is or edited to fit your needs. All sounds can be used commercially, and credit is not needed (I would appreciate it a lot though!).by F8 Studios - AL's recordings » Error.wav, Licensed under CC BY 4.0, by Autistic Lucario
- Half Life 2 Sound Effects, retrieved from http://files.hldm.org/hl/sound/
- Meganeko - The Cyber Grind (Ultrakill Soundtrack)
- coal bones - Votely
- Cheesy Hfj - Spow