Perfect World Entertainment. The company is playing cupid in several of its online titles, and players can acquire "wedding fashions, romantic items, spectacular mounts, mystery boxes, and more."
Jade Dynasty features a wedding event and items for marriage-minded avatars, while Perfect World International GMs will be interacting with players and giving out a rare mount. Rusty Hearts is putting on an art contest, and the prize is Roselle Vegerius (the game's latest premium character).
Forsaken World players will receive a Valentine's Day card and random items, while War of the Immortals fans can collect chocolate and trade it for additional XP. Finally, Ether Saga Odyssey players can enter a screenshot contest to win XP and bonus items, as well as bid for rare pets and send custom broadcast messages.
[Source: Perfect World Entertainment press release]