Wave Defence mode has been added. The intent here is to add a more relaxed, at your own pace game mode, compared to Skirmish's hectic RTS gameplay. 

There was quite a bit of thought on how to take the core economic system for DOT and make it work with the classic TD formula of making long term investments at short term cost. Ultimately the best way we found was to make uncaptured control points give more resources, and unlocking/upgrading control points cost an escalating amount.