Mods

Mod Safety
You must never try to install a mod into the game or server unless it has been updated to exactly match the version of the client you are running (see the Latest Compatible Release column below). Even a slight variation could be enough to cause problems, including crashing or corrupting your saves/world. Mods are typically updated on an irregular schedule shortly after the game itself is updated (though this depends on how quickly the mod author or maintainer gets to it), so there will always be a period following a new release when no mods are safe to use yet.

Mods that only alter the behavior of existing items, blocks, or mobs are fairly safe; they should typically be able to be installed or uninstalled at will, without corrupting your save (although if you have structures that rely on behavior introduced by a mod, then they won't work without the mod installed). Note that this includes mods that add crafting recipes without adding new items/blocks.

Mods that introduce new items, blocks, or mobs are not safe to uninstall. Once you have saved a new item/block/mob into your world, you must never play that world without having the mod installed, or you risk crashes or corruption. (Should you wish to uninstall the mod, you must either abandon your previous saves that used it, or ensure that you destroy all of the new items/blocks/mobs in your world before removing the mod.) Also remember that updating the client counts as uninstalling the mod (unless you immediately reinstall the updated version of the mod).

Mods that change how chunks are saved will render saved worlds incompatible with 3rd party software not designed to work with them. An example of such tools are map rendering tools, such as Cartograph G, that rely on parsing save files to produce their end results.

Multiple mods may conflict with each other; certainly if two mods need to alter the same files, then they are unlikely to be compatible.

Client Mods
Client Mods are modifications to your Minecraft program (Alpha or Beta). They are not custom clients, and require modification of minecraft.jar. Like high resolution textures, they only work with the launchers, and won't work if you play  Alpha through a browser.

The most common form of client mods are aesthetic and/or functional. However, some client mods add content to the game, and others fix issues with the game. While some do work on SMP, mods that add content, and thus  could be used for griefing, do not work, as the server will ignore  custom content.

Mod List
This list only contains entries that cannot contribute to griefing or cheating in multiplayer.

New Content
Any mods that add new blocks or items will have new Data Values, which can be found on the Mods/Data values page.

{| class="wikitable sortable" style="width: 100%; text-align: center;" ! width="120px" | Name ! Description ! width="50px" | Version ! width="60px" | Link ! width="50px" | Latest Compatible Release ! width="50px" | Requires ModLoader ! width="65px" | Author
 * Necrocraft
 * style="text-align: left;" | Summon the undead to do your bidding!
 * V2
 * Forum
 * thePalindrome
 * IndustrialCraft
 * style="text-align: left;" | Adds more than 40 items ranging from batteries to water mills!
 * V1.32
 * Forum
 * Alblaka
 * UltimateFist
 * style="text-align: left;" | This mod will add a completely new tool that can obliterate ANY block / item almost instantly. It lasts almost forever and is used for those who want to build faster. Originally by IWannaWin, Zaraza107 here. Made up to date by Madaraz.
 * V4.2
 * Forum
 * Madaraz
 * Controller Block
 * style="text-align: left;" | Adds a controller block that can be used for floodgates and bridges. When a controller block is powered, it creates blocks in predefined places. Videos in Forum.
 * 1.2
 * Forum
 * JStar (originally Sunrise_78)
 * Elemental Arrows - 303's Arrows
 * style="text-align: left;" | Includes and extends Elemental Arrows. Adds a dirt arrow, torch arrow, slime arrow, egg arrow, explosive arrow, fire arrow, ice arrow and mob arrow. There are three extension arrows which are warp, grass and confusion arrows.
 * 1.3_01v1
 * Forum
 * 303
 * Elemental Bows (Previously Fire Bow)
 * style="text-align: left;" | Provides an alternative to Elemental Arrows. Craft different bows instead of arrows. Still in development.
 * 2.3
 * Forum
 * pokepal101(MC) yinge101(YT)
 * Diamond Paxel
 * style="text align: left;" | This mod will add the possibility to combine the axe, the shovel, and the pick. Their durability will be combined and their strength will stay  the same.
 * 3.0
 * Forum
 * Madaraz
 * Carbonator
 * style="text-align: left;" | Adds Graphite (Made from Coal) and Carbon (Made from graphite). Includes a recipe to make diamonds. Also includes a recipe for gunpowder.
 * 1.5
 * Forum
 * Blodappelsin
 * Grappling Hook
 * style="text-align: left;" | A deliciously imbalanced multi-purpose device. It launches a straight-flying hook.
 * 1.2_02v3
 * Forum
 * 303
 * Light Sensor
 * style="text-align: left;" | Adds a light-sensing block as a new redstone input.
 * 1.3
 * Forum
 * Risugami
 * Elemental Arrows
 * style="text-align: left;" | Adds fire, ice, and explosive arrows, and a gag weapon, egg arrows, along with the unstoppable homing bow.
 * 1.3
 * Forum
 * Risugami
 * MrMMods
 * style="text-align: left;" | A patcher that adds any combination of three mods of your choice, SimpleMap, SMChat, and Ambient Occlusion  light. Works with B1.2_02.
 * Carbonator
 * style="text-align: left;" | Adds Graphite (Made from Coal) and Carbon (Made from graphite). Includes a recipe to make diamonds. Also includes a recipe for gunpowder.
 * 1.5
 * Forum
 * Blodappelsin
 * Grappling Hook
 * style="text-align: left;" | A deliciously imbalanced multi-purpose device. It launches a straight-flying hook.
 * 1.2_02v3
 * Forum
 * 303
 * Light Sensor
 * style="text-align: left;" | Adds a light-sensing block as a new redstone input.
 * 1.3
 * Forum
 * Risugami
 * Elemental Arrows
 * style="text-align: left;" | Adds fire, ice, and explosive arrows, and a gag weapon, egg arrows, along with the unstoppable homing bow.
 * 1.3
 * Forum
 * Risugami
 * MrMMods
 * style="text-align: left;" | A patcher that adds any combination of three mods of your choice, SimpleMap, SMChat, and Ambient Occlusion  light. Works with B1.2_02.
 * Risugami
 * Elemental Arrows
 * style="text-align: left;" | Adds fire, ice, and explosive arrows, and a gag weapon, egg arrows, along with the unstoppable homing bow.
 * 1.3
 * Forum
 * Risugami
 * MrMMods
 * style="text-align: left;" | A patcher that adds any combination of three mods of your choice, SimpleMap, SMChat, and Ambient Occlusion  light. Works with B1.2_02.
 * Risugami
 * MrMMods
 * style="text-align: left;" | A patcher that adds any combination of three mods of your choice, SimpleMap, SMChat, and Ambient Occlusion  light. Works with B1.2_02.
 * style="text-align: left;" | A patcher that adds any combination of three mods of your choice, SimpleMap, SMChat, and Ambient Occlusion  light. Works with B1.2_02.

Note: Ambient occlusion lighting will likely not be updated, as Minecraft Beta 1.3 now officially includes AO lighting as a visual quality option, making the mod unnecessary.
 * 1.4
 * Forum
 * MrMessiah
 * MineColony
 * style="text-align: left;" | Adds workers to help you mine, farm, chop wood and deliver the goods. dfu's fork of the source code (available at github) is more compatible with other mods.
 * 0.41b
 * Forum Website Forked Source
 * lacozzini, dfu
 * Mo' Creatures
 * style="text-align: left;" | This Mod adds more creatures to the game. Currently it has the following creatures: Sharks, Were-wolfs, Lions, Bears, Wolves, Polar Bears, Wraiths, Flame Wraiths, Ogres, Fire Ogres, Cave Ogres, Ducks, Boars, Bunnies, Birds, Foxes and Horses (lot of different ones). Requirements: Download and install AudioMod 1.2.6 and ModLoader
 * 2.7
 * Forum
 * DrZhark
 * Quintessential Creatures
 * style="text-align: left;" | This Mod adds new creatures to the game. Currently it has the following creatures: Turtle, Troll. Requirements: Download and install AudioMod and ModLoader
 * 1.3.2
 * Forum
 * Firehazurd/DrZhark
 * Humans+
 * style="text-align: left;" | Adds several human and humanoid NPCs — some friendly and some hostile.
 * 1.4
 * Forum
 * Mr. okushama
 * Extended 2x2 Crafting Grid
 * style="text-align: left;" | Makes many more things available for 2x2 crafting.
 * 0.4.02
 * Forum
 * yofreke / GreyAcumen
 * Guns, Grappling Hook, and Utilities
 * style="text-align: left;" | Adds 10 different types of guns, 4 grenades, several new blocks, and a bunch of different utilites.
 * 1.3 v4
 * Forum
 * ScottyDoesKnow
 * Airplanes
 * style="text-align: left;" | Adds the ability to both craft and fly a biplane.
 * v3
 * Forum
 * jamioflan
 * FancyPack Furniture and Decorations Pack
 * style="text-align: left;" | Adds a wide variety of furniture, decorations and other items for interior decoration.
 * v3.2
 * Forum
 * ChocolateySyrup
 * -|}
 * yofreke / GreyAcumen
 * Guns, Grappling Hook, and Utilities
 * style="text-align: left;" | Adds 10 different types of guns, 4 grenades, several new blocks, and a bunch of different utilites.
 * 1.3 v4
 * Forum
 * ScottyDoesKnow
 * Airplanes
 * style="text-align: left;" | Adds the ability to both craft and fly a biplane.
 * v3
 * Forum
 * jamioflan
 * FancyPack Furniture and Decorations Pack
 * style="text-align: left;" | Adds a wide variety of furniture, decorations and other items for interior decoration.
 * v3.2
 * Forum
 * ChocolateySyrup
 * -|}
 * FancyPack Furniture and Decorations Pack
 * style="text-align: left;" | Adds a wide variety of furniture, decorations and other items for interior decoration.
 * v3.2
 * Forum
 * ChocolateySyrup
 * -|}
 * ChocolateySyrup
 * -|}
 * -|}

Server Mods
Server Mods are modifications to the official Minecraft server software. They generally fall into two broad categories: management and gameplay.

Management mods are commonly designed to make administration of servers easier by implementing tiered privileges for commands (such as kicking, banning etc.). They are frequently implemented as "wrappers" which do not actually modify the main server .jar file, instead monitoring its output and sending commands to it.

Gameplay mods are modifications to actual game mechanics, such as restricting the placement of blocks commonly abused by Griefers (e.g. lava, TNT), fixing bugs in the server (e.g. making furnaces function before the update of 10th of September 2010) or adding new gameplay features.

Mod List
This is a list of wrappers and modifications.