The latest title from Tribute Games, the developers of the wonderful Wizorb, is Mercenary Kings.
https://lastchance.cc/wizorb-is-out-still-looks-brilliant-5844969%3C/a%3E%3C/p%3E
The levels will be littered with components and materials which you can use to make your own weapons, or even just parts of weapons. Tribute say the āweapon customization possibilities are nearly endlessā.
Itās due on PC next year, with other platforms a possibility
Also of note: itāll feature 4-player co-op, and like Wizorb, features art by Paul Robertson