Hello. Ive commented yesterday about your project on the Vintage Story discord server, and now reaching out here after testing the game as promised :)
I like the concept of your project, and have to say that you did great job with the voxel model of forge. Unfortunately i found some issue after interacting with anvil. Whenever i would spawn smithing grid at the anvil, the game starts running with a significant fps drop - like from above 60 before interaction, and below 20 after placing smithing grid. Also when trying to heat the smithing grid in the forge, the fps number seems to drop even more - preventing from proper navigation in game. And because of that i couldnt get voxel manipulation on anvil to work.
It doesnt mean that your game isnt good - i like that the idea and work youve put into it - it just seems like theres some kind of bug causing this issue. Maybe some kind of memory leak after placing smithing grid? Or could you try disabling Vsync option for the project? Would be great if we could find some kind of solution for this, cause the project truly presents pretty interesting mechanic.
Thanks, and wish you good luck with work on other projects in future!