The Last Moon
- Tileset: completely redone tileset
- Sprite animation frames: All new monsters
- Story text: continuity to Redemption, the unfinished second part
- Levels: 12 regular levels; 1 worldmap
- Bugs: No known errors or bugs
In this chapter of the saga, Commander Keen has returned to Shadowlands to do a little sight-seeing during his summer vacation. When all of a sudden, there is a great explosion. Keen looks up and sees the planet Ghyrock hovering above engulfed in fire. Keen quickly jumps into his B-w-B Megarocket and flies to Ghyrock to see what all the commotion is. Upon arriving however, Keen is confronted by a Ghyrockian.
Ghyrock has four moons. Ghyrock's unusual gravitational range is constantly pulling the sattelites to its surface. So four crystal shards were placed in the four temples, forming four pillars of light to hold the moons in place. But someone has taken the crystals and the pillars have vanished. Except for one, the last moon of Ghyrock remains intact, and that is where the four crystals are believed to be.
Keen quickly jumps in his megarocket and flies through the pillar of light to the last moon, Arcanyx.
Keen arrives on the surface. 'Strange,' Keen thought, 'I was under the impression that there were colonies here, but there doesn't seem to be anyone around. Keen quickly flies around when he his suddenly hit by a green warhead missle! Keen's ship spirals out of control and collides with the ground. Keen gets out unscathed.
"Oh, NO," Keen exclaims, "The people on this moon are in the middle of a WAR!"
- Key: Only one key is in this game, it fits all the doors
- Crystal: 100 points
- Water Gem: 1000 points
Spoiler Warning! This shows the whole levels.