Wild Terra Online is described as 'An MMO life simulator in a fully player-driven medieval world. Players explore, hunt, craft, build, decorate, farm, collaborate, fight, and lay seige to rival buildings and villages'. There are four games similar to Wild Terra Online for a variety of platforms, including Mac, Windows, Linux, Android and Android Tablet. The best alternative is Wurm Online, which is free. Other Wild Terra Online like games are Salem (Free), Krafteers (Freemium) and Haven & Hearth (Free).
Salem is a fully open sandbox MMO with deep crafting elements. The game features permadeath as one of its main ingredients, along with an in-depth character development system without set roles, where the player can chose which kind of game to play.
Can you survive in a desert island, alone or with your friends? Explore the world to collect resources, food and water, craft tools and weapons, use your creativity to build a fortress and defend yourself from a mysterious menace.