A temperature and thirst mod that doesn't defy logic. Challenging, but not in an annoying, grinding way. Very stable code, so shouldn't randomly crash game. Very vanilla friendly. Should integrate well with a heavily modded pack, or vanilla.
Glass shouldn't have opaque pixels! Makes regular glass (and panes) render as translucent blocks, so that resource packs can give them translucent textures. Includes a built-in resource pack to do so.
Animals will follow you even after switching the item in your hand, for a configurable amount of time (in case you need to fight off an enemy or use a certain item to open a door, etc.)