I'm not sure I understand the point of the game.
I went to collect the crystals by killing the octopuses, to bring them back to the central pillar and expand the central area. Maybe we should add a welcome screen with the goal of the game?
If the area expands and new crystals and monsters appear, it can be a very good start to the game. I like the idea of expanding the central base by supplying it with a resource found on the map. Some sounds would be welcome!
To refine! It's encouraging !