Lands of lore & kyrandia seem to be in the same game world or in the same game multiverse able to connect to one another through dimensional travel at the very least

In the second kyrandia game there is mail from characters in lands of lore

In the 2nd lands of lore game Kyrandian gems are mentioned in a museum

In the 2nd Kyrandia game world geography is changed

In the 3rd lands of lore game world geography is changed & people enter portals to other lands including possibly

command & conquer