These are some links to SDA Knowledge Base webpages. They are intended to guide players into understanding the routing, gameplay, and conditions of the runs.

Information relevant to the entire series: https://kb.speeddemosarchive.com/Commander_Keen_(series) Information relevant to the engine: https://kb.speeddemosarchive.com/Commander_Keen:_Vorticons Information on the game itself: https://kb.speeddemosarchive.com/Commander_Keen:_The_Earth_Explodes