I have successfully passed level 1 soulkeep and it was easier and it is after some attempts and after also I have replaces tarantula loom with knife trosser and I think all would be like that when I use strong towers but I have found that level 2 is much harder.
Although it was only one way like that of level 1 but level 2 is harder with fiends that come on the way and that are faster and their types are much harder so you have to take care of this level and use good towers to be able to pass this level and keep your hearts safe.
This level new thing has been opened and this is spell and I would try stew of doom which is with 5 Mana to be used and it also added by default in the game so it is like a magic pot to be used to kill a group of fiends or at least hurt them and damage them.
So all you have to do is to study the map well and to see what would happen if you use specific towers in the battle and also for spells to see what at the end you could get mana and upgrade towers and to see which spells would be good for you and which would be good for other levels.
