Notice: Many browsers are beginning to disable or hide the Adobe Flash plugin, in preparation for its
end-of-life in December 2020.
If you are experiencing problems playing Flash content, please consider installing our official Newgrounds Player
to continue enjoying this content indefinitely.
The primary cycle of your economy is formed with 2 elements: an underwater volcano, which produces bubbles when touched and your submarine base: it converts oxygen into money.
The first purchase is the hammer. It hits the volcano automatically. Then you'll be able to connect a cogwheel to it. By spinning the cog you'll be able to empower the hammer in a great way and increase your earnings.
There is much more to discover, the ingame tutorial will explai you the rest!