Both of us downloaded Starcraft: Brood War Legacy for free (Yes, it can be downloaded for free on the Blizzard website) and we were able to make a quick account without need to create an online account.
I actually played with an IRL friend not too long ago. Can you still play StarCraft Brood War Online? The game design rewarded higher skilled players, but a strong custom-map community also gave countless hours of entertainment for casual players. The game itself offered things for both hardcore and casual players.
