Build and Defend (or B&D) is a Multi-player Rogue-like Sandbox game. You will need to build a fortress and survive to hordes of monsters. The game is player at the 3th person (like Zelda 3). You can player alone or in multi-player (several players on the same computer, or on internet).
In the Fortress mod (soon to be release), you will start with 100 golds, and in an old fortress. You have 5mn to elaborate your defense strategy against the waves of monsters.