Despite everyone else whining i actually found this game really easy, just horrifically slow. once you get spiders, get their poison max, THEN their hp/damage, then start on nest masteries. I'm up to an unnamed level after "two ways" and 4 spider nests per lane is enough for the last waves. with all the masteries your spiders generally spawn fast enough for even boss heroes to get blocked at each nest. I tried using skeletons as a starter given they can crit, but with only 2, or an upgraded 3, some of the hero waves just walk straight past.
now, onto my criticism,
1: game is far too slow, I went afk for 5 mins at wave 10, and was at wave 14 when i got back. this is just because enemies have too much health.
2: the spelling and grammar in english is absolutely awful.
3: The number of bugs started annoying me, like all the chests that appeared in the black around the edge of each map, and the occasional enemy that would run all the way to the chests when Feared.
Despite this the game was fun and simple at the start, just too slow as the game progressed.