Humble Bundle offers Steam downloads of its Humble Star Wars Game Bundle III for Windows for whatever you want to pay. If you opt to pay the bare minimum of $1, you'll get Star Wars: Knight of the Old Republic, Star Wars: X-Wing Alliance, Star Wars: X-Wing vs TIE Fighter - Balance of Power Campaigns, and Star Wars: Galactic Battlegrounds Saga. That's $35 under the lowest price we could find for these games purchased separately elsewhere.
If you pay more than the average, currently $10.72, you'll also get Star Wars: Battlefront II, Star Wars: Jedi Knight II-Jedi Outcast, Star Wars: Starfighter, Star Wars: Knights of the Old Republic II-The Sith Lords, and Star Wars: Rebel Assault I + II. Pay $14 or more and you'll additionally get Star Wars: The Force Unleashed-Ultimate Sith Edition, Star Wars: The Force Unleashed II, Star Wars: Rogue Squadron 3D, Star Wars: Shadows of the Empire, and Star Wars: Empire at War-Gold Pack. Lastly, pay $35 or more and you'll also bag a Star Wars Unisex X-Wing vs. TIE Fighter T-Shirt. Your contribution can be donated to charity (UNICEF Kid Power), the developers, or both.