Definitely looks like a nice proof-of-concept game, one I'm eagerly looking forward to seeing more of. The only issue is that when you lose cursor lock on the WebGL version, there's no way to get it back, otherwise I had no issues with the browser version to speak of (aside from the personal annoyance of the player character being a smidge too slow for my taste).
I would maybe like to see other bondage materials, like gear that counts for the strength of two bindings—armbinders for the arms, hobble skirts for the legs, maybe hoods for the head (and alternatives of each: box-binders. And perhaps a more difficult variant of the lasso, like a cross strap, that hogties the target when thrown, but keeps the player's arms and legs bound with cuffs if they manage to wriggle free. Then maybe you could up the "game over" limit to five before escape becomes impossible from a hogtie.
Of course, I could be asking a little too much. Surely you have your own plans in mind for the game. But what I see here so far is the start of potentially something amazing.