VEV is free on https://timboe.itch.io/vev (Java: Linux, Win, Mac. Android)
In VEV you are tasked with deconstructing a finite number of particles which will spawn into the land... and promptly go wandering off.
Mine some ore, then build deconstruction facilities and corral the particles into their queues. Setup standing-orders to direct particles to, and between, deconstruction facilities.
Use the energy gained from deconstructing the particles to build more deconstruction facilities, and to upgrade them.
How fast can you deconstruct all of the particles?
VEV is written in libgdx, the source is available at github.com