Mana gatherers are friendly creatures in Arcane Worlds who seek mana and bring it to your castle. They are spawned at your castle automatically.
Now, to open the portal to another world you need to collect enough mana in your castle. The castle also absorbs any mana dropped on it, so placing it strategically and fighting monsters near it could significantly speed up mana gathering.
The game is now in “alpha”, up from “pre-alpha”, so I raised the price to $10.
As usual, more info, demo download and purchase button are here.