For the final game in the Zem! series, the game moves away from its Lemmings root and toward an action platformer. The player character is Ben (or Jenna) Hunter, a lemming hunter, who has to chase down and save Zem before Zem walks into a pit of spikes or any other danger.
This was announced as my official retirement from ZZT game development. I had begun working on the game almost immediately after Zem! 2 (the Zem! 2 Level Pack included a preview of Zem! X).
ZZT games require ZZT to run. Download it from Z2.