This video by Hera basically sums it up; Teutons aren’t good at anything.
It’s an infantry civ without any decent infantry bonus.
It’s a late game civ missing two important late-game techs: bracer and hussar/light cav.
Because of these two points, it’s a civ with average infantry (its specialty) and no reliable way (except expensive onagers) of effectively dealing with the abundance of powerful archer civs.
My buffs: All infantry get +1 normal / +1 pierce armor starting in Feudal Age; +1 normal armor in Castle Age; +1 pierce armor in Imperial Age (for a total of +2 normal / +2 pierce armor)
Why I think this is fair: Mobility of infantry is still the main issue here so it will still always have archers to contend with. The idea is that the infantry are just a bit more durable and can be a bit more useful as a damage sponge for archers. Considering their lack of bracer, I figured this might be the tanky, well-armored Teuton’s way of dealing with it. Which brings me to the Teutonic Knight. With this bonus, it would be a bit less of a joke with it’s super-snail speed if it took a concerted effort to bring it down. At the moment, it seems to die to archers just as easily as any other infantry, so perhaps change that to make it notable for something?
Don’t know whether this would be OP but I figured it’s worth a try. I would love to see the resurrection of this infantry civilisation.