A 1999 re-release of Warcraft II: Tides of Darkness, and its expansion pack, Beyond the Dark Portal, classic RTS games centered around battles between orcs and humans, with a good campaign and great multiplayer, both enhanced in the Battle.net Edition re-release. Plenty of cool magic and weaponry to keep people entertained for hours and cheap to buy since it's old. Unfortunately the game does not work on Windows Vista and its LAN can be messed up by multiple network interfaces. Predecessor is Warcraft 1, spiritual successor is Starcraft and sequels are Warcraft 3 and WoW.
I pawned those orc noobs thinking they were so cool with their bloodlust by hitting them from the sea with 1337 human battleships! Not as imba as you thought ur race was in Warcraft II: Battle.net Edition, eh punks?