ATTN: COMMANDER KEEN fans (& any fans of sidescrollers)

[thetonestarr]

Well, 4 was shareware, and yes, a major step up from 1-3. Not only was it a graphical step up, but it also played far more smoothly and had much catchier tunes.

But yeah, since it was shareware (and still is), it'd naturally be far more easily found on computers.