The +1 General gamepass unlocks an extra General slot, letting you use another General on top of the one you start with, each General adds boosts like faster factory production or a bigger civilian count.

Yes, Auto Sell is worth it over selling manually for most players, since it automatically sells your resources for you instead of requiring you to do it by hand every time.

The difference between Money and Gems in Mini War is that Money is the main currency used for building and research, while Gems are rarer and used for things like rolling for a new General.

Yes, you keep the Crates, Gamepasses, and currency included with my purchase, exactly as shown in the listing.