Another signifficant change.
You can upgrade weapons. I mean, this was always an option. Initially I thought about a system, where you need a copy of a weapon to upgrade it. This didn't work well, so I decided to introduce completely different system. Now every weapon can be sold for components, and these components can be used to upgrade weapon instead. This changed more than I thought but I must say this system does feel better. I should improve it's visuals tho.
I also found out, that some things are very easy to implement, when being quite useful, but somehow, they feel not that important. Like pausing a game. That's an obvious feature, but when building a game it was always somewhere in the back and always something was more important. I think adding to each update at least one such small improvement can make the game overally better over time. I will test this aproach since now.