FTL but it's actually Factorio-er Than Light. Factorio but the player is also a factory. Build a titanic space ship out of special rooms, with each room adding to the overall shape and function of your starship. You then build your factory throughout these rooms. This mod changes up factory building by giving you infinitely expandable space but with unique limitations. *Coming soon: Control a fleet of ships and space stations and battle the biters procedurally generated alien(?) starships, and something about planets*
Large total conversion mods.