This is my first app, it finally found it's way to Steam. I put a lot of effort in it, hope you like it :)
The only difference to Android/iOS is that there is no in-game store and no advertisements, this is PC after all!
The game is intended to be played in windowed mode, so you can happily be distracted from whatever productive thing you should be actually doing.

Summary

You are the captain of a space ship and fly through missions to earn money. With the money you can buy parts to build your weapon in your space ship. You can also buy bigger and better ships which can fit more parts. Building a small weapon is straight forward, but later you can build extremely strong weapons if you use the available space wisely.

Features of Miner Gun Builder are:

• 8 Captains with custom skills
  
• 100 handmade missions
  
• Infinite procedural created worlds
  
• 41 Ships (and custom ships with endless combinations)
  
• 51 Achievements
  
• 12 Challenges
  
• 52 Weapon components
  
• 73 skills in the skill-tree
  
• Your own alliance you can invite friends into
  
• over 1.000.000.000.000 possible weapons !!!

The game is an light-hearted version of an arcade space shooter but has substantial depth regarding the mechanics.

If you like to tinker around and optimize stuff - This is a game for you.