I released this f2p game here on itch some time ago

A Space simulator where the object is to raise as much ISC you can in System GT each time you play the game

Game Features
Trade on the marked on Life mineral a substance that has multi use with everchanging price.
Hunt and Capture Pirates for Reward.
Hunt Hostile Aliens for Reward.
Mine Asteroids for Life Minerals

The game runs good on basic 4gb ram computers with win10 and up and tested on linux with wine

game website
https://o139.itch.io/systemgt