Excalibur: Morgana's Revenge
You can download Excalibur: Morgana's Revenge 3.0 for Mac from our application library for free. The application is categorized as Games.
From the developer:
Excalibur: Morgana's Revenge is a unique scenario based upon the Aleph One (Marathon) engine. It is a first-person action adventure game, featuring an epic and in-depth story line.
As a Federation Marine resting after your last mission, you start aboard the exploration class Starship Kronos where you learn that your real mission has yet to begin. You are re-acquainted with the AI Merlin, who introduces you to Kronos time traveling technology, and reveals your new mission: to save mankind from the clutches of Morgana and her minions. Through untamed raptor-infested jungles, castle arenas, and war-torn streets of the future, you will wield weapons from all time periods - including the Sword of Power, Excalibur - in an effort to thwart the diabolical plot that unfolds.
You may want to check out more software for Mac, such as Excalibur, Spirit of Revenge: Gem Fury or Chicken Invaders 3- Revenge of the Yolk Easter Edition, which might be similar to Excalibur: Morgana's Revenge.