So I finally made some progress in creating this game which I hope to finish later in a playable form. I've always liked games of this type, there was something addictive about them, mining raw materials and buying improvements to extract raw materials that are deeper. I would like to create a game where the player has to decide which way to choose, so that it is not just about grinding, I thought of the idea of "rocket" that after a certain time flew off the surface and into which would need to deliver the material, however, its start could be delayed with money / resources, which would allow the player to decide whether it would be worth it to stay in the level and to mine, or whether it would fly and go to the next level where it could unlock new upgrades. Another idea is to add rivals who would compete with the player on the construction of some major project, whoever would contribute the most resources would get the benefits of completing that project.

I’m creating this game in the Unity engine, the biggest problem that I had was creating a system of collisions of the robot with tiles that unfortunately take me 4 days to solve, i made it from scratch because i had problems with native Unity collisions system, that is not really optimal for this purpouse. I tried to solve it cleanly and optimally so that there would be no optimization problems after I will add huge levels. Now collision works really well.

Things that i done:

- collision system
- robot movement
- very primitive ores random generation, later to be redesigned to a more sophisticated version
- mining
- inventory (for ores)
- the fuel system and its replenishment
- selling raw materials in a designated building
- first upgrades of drill and tank

The graphics are, of course, only temporary to tune the basic game principles