15 years had passed since the evil Lor Malgoriand was destroyed. The second great war is over, the world is saved but broken. However the looming threat of the Lost Loreldians was never forgotten,  using a rift accidentally created by fallen elves, serving Lor Malgoriand, the Lost Loreldians can communicate with Leann.

The Malign Lord Iposatu had been patiently waiting for the moment he could manipulate Leann directly. Evil is rising once more, the world is in danger, the guardian Loreldians of this world are still absent so it is your duty to save the world once more.

These are the times you live in.
Perhaps you can even influence the whole world of Leann. Can and will you save Leann? will you aid the evil Lord Iposatu? Will you be a mercenary? Or aid a third party? well it is up to you.

Set in the popular Fate Sworn universe, (the gameworld in which the Half-Life modification Mastersword was set) Master Sword: Source is an Online Role Playing Game, a sequel to the Goldsource modification Master-Sword. Master-Sword: Source is a total modification for the Orangebox engine. Master Sword: Source is set to provide the penultimate RPG experience for the Source engine!

The list of planned features includes:

- 3 playable races
- Melee, Ranged, and Magical combat
- Robust NPC interaction and Quest system
- Unique Bartering system based on skills
- The ability to play as a Good or Evil player, even so far as siding with the monsters!
- Extensive beta1 game world that will continually get larger as further versions are released!
- A breathtaking story leading you across tundras, jungles, deserts, wetlands, catacombs, ruins, and more.