From the back of the box:
"This is the complete collection of one of the most critically-acclaimed game series ever created. For the first time a real-time strategy game looks and feels like a real battlefield. Forget about games with static overhead views. In the fully-3D world of Myth, you can rotate around your troops, watch archers' arrows arc to their targets, and seize the high ground for tactical advantage.
Myth: The Total Codex includes both Myth and Myth II, the "Chimera" scenario pack, the official strategy guides for both Myth and Myth II, and dozens of Myth II multiplayer maps created by Bungie fans."