Twohanded Engine

Two-handed weapons are marked with an item tag under the twohandedengine namespace. Items in the twohanded set keep working in the offhand even while a player holds a two-handed weapon, and an item tag can also disable the offhand slot for a weapon. A tooltip shows the two-handed status on tagged items. Default tags already include simple items such as maps, torches and compasses.

Critical hits are controlled by separate tags: a disabled tag stops a weapon from landing critical hits, while the ultra light, light, heavy and ultra heavy tags assign different multipliers. Most items in the mod use a multiplier above the vanilla critical hit value, and the critical multiplier is shown in tooltips on items that carry attack damage. Pack makers adjust the tag contents rather than writing code.

The mod runs on NeoForge for Minecraft 1.21.1 only, and the environment is client and server, so the server and every player need it. It is released under the MIT License and is open source, and both source code and an issue tracker are public. It is required by Swordish, which means that mod needs Twohanded Engine installed to work.