Commander Keen 4: Secret of the Oracle

About the game

Commander Keen 4: Secret of the Oracle stars Billy Blaze, an eight-year-old genius who dons his brother's football helmet, fires up a bean-with-bacon megarocket, and sets out to rescue the Gnosticene elders before the Shikadi can detonate the galaxy. The tone is pure Saturday-morning: pogo-stick locomotion, neural stunners instead of guns, and enemies from slugs that must be splashed to the unkillable, ever-patrolling Dopefish.

Technically it was a statement. Smooth, console-quality scrolling was supposed to be impossible on EGA PCs until id's engine work proved otherwise, and Keen 4's larger levels, parallax skies and diagonal pogo physics showed the tech maturing fast. Level design rewards curiosity relentlessly — secret passages, hidden drops, and an entire secret level for players who question the map's geography.

Released through Apogee's shareware pipeline as the opening act of the "Goodbye, Galaxy" pair, it became the best-loved entry in the series and the friendly public face of the studio that would ship Wolfenstein 3D the following year. PC platforming credibility starts here.

Technical notes

EGA engine with smooth omnidirectional scrolling and parallax — technology considered impractical on PCs until id shipped it. Documented here in its DOS release.