This is an unofficial, non-commercial fan tribute made to teach computing. It is not made, endorsed or sponsored by id Software, Apogee / 3D Realms, or the makers of Commander Keen. It uses none of their code, art, sound or levels; everything here is original and drawn in code.
Intel, AMD, Arm, Nvidia, Microsoft, Windows, Google, Android, Linux, Apple and macOS, and every other product or company name, are trademarks or registered trademarks of their respective owners. They appear only as plain names to describe real products. No logos are used, the colours are only loosely inspired by brands, and the characters' perks are made up for gameplay. Nothing here implies any partnership or endorsement.
The game is provided "as is", without warranty of any kind. Third-party software included: three.js (MIT licence), in vendor/.
Nine real threats, three per operating system. Descriptions are simplified; the sprites are cartoons.