I fins that if I spawn more than 1-2 slimes from a goo canister it crashes my game, I am playing 0.6 version not a nightly build.

Confirmed, I did a dozen quick tests, and it only seems to crash if 2 of the blobs are right next to eachother, I’m assuming that one tries to move into the other one, which crashes the game.

i killed an NPC and found an artifact on him , when i used it , it spawned a friendly vortex that went to attack a jumping spider and as soon as the vortex touched it , the game crashed.