Dead Island vs Urban Dead
Dead Island
Dead Island is a first-person, zombie-themed action game that is set in an open world tropical island getaway called Banoi. With a compelling storyline to keep you hooked, the game's campaign features scavenging for parts as well as crafting and augmenting weapons (mostly melee) in addition to the whole smashing zombies' brains in gameplay. Not to mention, you can even play cooperatively up to four players.The character progression in this game is simply astounding as well, allowing you to develop your character based on your preferences.So, to sum up, if you love zombie-slaying/bashing and you don't think The Walking Dead has enough of it, then you'll enjoy playing Dead Island.
Urban Dead
Urban Dead is a mainly text-based MMO game set in a post-apocalyptic city that you can play straight from your browser. Assume the role as an urban survivor trapped in a quarantined city just trying to get by. However, unlike most games, Urban Dead is an MMO and as such, you'll encounter other players as you wander from place to place hoping to scavenge something - anything - that might help you. These players can be friendly or hostile (though, it's more often the case the latter).You can even set up a center of operations, so to speak, by clearing a place out and lock the place down. Other players might try to break into your base though, so it might be best to recruit a few trustworthy players to help you maintain your base and keep it as well as everything you hoard in it safe from any looters. Of course, there are also zombies that will attack your base and you, if you are unlucky enough to bump into one or an entire horde.
Urban Dead is a quite different text-based game admittedly, but it is still very addictive to play. It might be best to play with friends though due to how its base building feature is structured and well, there is always safety in numbers.