These coins are a themed set for Medieval games. They have a religious context to several of them while others appear to promote guilds or worker types. Overall the set is distinct in size, color, & weight to make them feel increasing in logical value and appear imperfect as a real coin of that age.
The Large coin has a good silver appearance with a herald or shield on one side with details in the symbols which could imply it would represent a guild (merchant?). On the reverse is a bird, very reminiscent of the old German double eagle (but it is different from that) yet gives a feel of a regional coinage in central Europe.