There was an idea of selling slaves, but there was never one of selling ships or units.   Except for donating units 

I think these ideas need to be followed up and then develop the idea in depth.

I think Delenda Est has slaves and capturing them, though I don’t know how that works. I also added a slave unit to HC, basically just randomized unit models using the phenotype system.

Just somewhere in october

I always take the time to read comments. That helps me then to comment here and brainstorm ideas and strategies.  Many people, for example, might like to add a small city builder mode.   I got here through the Google search engine. I came across images like these, armies in formation; I looked at this and it reminded me of Praetorians. The visual similarity of the images thrilled me.