I'm playing through Borderlands on my first play through in co-op with someone and so far this game is very fun and enjoyable to play. Since I liked to mod games, i've always seen several things that I would like to mod but the game is very good so modding this one will not be to make it better but just because modders like to change things to make it different. The way this one is set up, it shouldn't be hard to add new maps, areas and quests and even change or modify enemies. This definitely should be a recommended game to play.