Credits

Art and sound. Every sprite, tile, background, sound effect and the music loop are generated by the game's own code (pixel art painted at build time, sounds synthesised in the browser). No third-party art or audio packs are used.

Engine. Phaser 3.90, MIT licence.

Font. Press Start 2P by CodeMan38, SIL Open Font License 1.1.

Inspiration. The run-and-gun games of the late '80s. Outpost Zero is an original game and isn't affiliated with any of them.