Mathew Lowcock

In my testing I applied a glass roof and the rate appeared to have at least halved. Efficiency of a farm isn't the problem. I usually create a farm close to my base, passively generating slime and letting their own pathing algorithm remove them from the platforms. Now, to get any rates similar to 1.12 and 1.13, I have to create a hole, which I don't want near my base. Since its not near my base, i have to afk at it. As a casual player who wants to build a design using slime, but i am required to build a farm that would take 6 hrs compared to an hour, I am not inspired to play.

Efficiency isn't the problem when the spawning algorithm has changed, making spawn rates negligible unless you are trying to make a efficient design.

Slime spawn rates in slime chunks are negligible compared to same conditions in 1.12 and 1.13. Unless the whole chunk is mined out the rate appears to be negligible.

Chunk 0 0 -5, has had one spawn of the test world I attached, this is negligible to the rate prior to 1.14. Chunk 3 0 -2, have been experiment with. Currently with glass, but the rate is severely cut from having no block above the platform.