Critter Conquest is a Facebook based social game, multiplayer and singleplayer city buider and strategy battle game, you are the ruler of a Critter Kingdom and build the strongest kingdom, raise an army and conquer your enemies, is free to play on Facebook, from ClipWire Games.
Evil Genius Online is a browser based (Facebook based) social game, strategy, 3D tycoon game, you build an ultra-secret underground lair and command your army of minions to carry out your evil plans as you plot to control the world, is free to play in open beta on Facebook, from Rebellion Interactive Limited.
Throne Rush is a cross-platform social game, Massively Multiplayer Online Real Time Startegy (MMORTS, MMO, RTS) and village builder game, free to play on Facebook and on Android mobile devices, from Nexters.
Dragon City is a cross-platform social game, dragon-themed casual game, island builder and adventure game, free to play on Facebook, as well as on mobile devices - Android and iOS (iPhone, iPad, iPod), coming from Social Point.
Jurassic Park Builder is a cross-platform social game, dinosaur-themed park builder game, simulation and management game, free to play on Facebook and mobile devices - Android and iOS (iPhone, iPad, iPod), from Ludia.
Pirates of the Caribbean: Isles of War is a Facebook based social game, city building (island building in this case) game and adventure Massively Multiplayer Multiplayer Online Real Time Stratey Game (MMORTS, MMO, RTS), free to play on Facebook, from Disney.