TorchED Download link

[なかの31]

I'll place this so nobody misses. I'll try also to make a mirror for it, to reduce the chances of the editor be lost on the web.
https://support.arcgames.com/hc/en-us/articles/360017719613-How-to-get-TorchED
Mirror: https://mega. nz/#!ooBQVKTZ!b7P04bYXih75hAO0LpkSCfx5AWFV2RKaBzSNkHYs134

In case you question yourself what is it, TorchED allows you to mod this game.

[StreamWhenGuy]

Torchlight Editor is available on Steam under the Tools category.

[なかの31]

Only now that you mentioned I noticed that It's on Steam too.
Well, two mirrors anyway.