Thaumcraft 4 Tweaks

The addon targets Thaumcraft 4 only and is not meant for Thaumcraft 5 or 6. It runs on Forge for 1.7.10, the only game version it supports. Either side can run it, and neither needs it, so the server and client may use different builds of the mod.

On the client, mouse wheel scrolling replaces clicking through the aspect list on the research table and the pages of a research book. The mod shows a hint when scrolling is enabled while the cursor is over a research note. Several small code paths in Thaumcraft 4 are made more efficient, mostly to raise frame rates, and some of them also reduce load on dedicated servers, mainly around arcane crafting. Later builds add a patch for alchemical furnace lag and a change that reduces the cost of energised nodes checking whether they can still see a relay.

An experimental opt-in option stops the arcane workbench from behaving as a normal crafting table, which removes most of its lag in large packs. It changes how the bench works, so it is a trade-off. The addon is open source under the GNU Affero General Public License v3.0 only, and public links exist for the source code and the issue tracker. Latest Forge file is 1.5.43 for 1.7.10, published 2026-02-10.