I don't know how helpful this will be for the game, but here is an infographic of the towers, totems, and applicable upgrades for the game Demons vs Fairyland. (Made by, me, Reton8). Just click the image to get a large, readable and useable version.
Note: Some prices and unit stats change as you gain upgrades, I've shown all prices and stats without upgrades and then when you have every upgrade unlocked. Anything with one price or stat means that upgrades do not affect that price or stat.