Content is modular and various sections can be disabled via the options.

Primary Features
Druid class:
Uncast spells to produce nature based magical effects.
Its an agile nature mage, but can be played as a fighter/mage hybrid, or as a summoner hybrid.
Uses staves, alchemist gems and equilibrium.
Werebeast Class:
Werebeast fits somewhere between Cursed and Wyrmic, with a touch of Rogue thrown in.
Flavour is you have been cursed by nature's hate at those who harm it.
Can be played with conventional weapons or dual mindstars, stealthy or heavy.
Uses both Hate and Equilibrium.
Woodsman Class:
Archery, Summoning and Traps.
Use whatever you need to survive.
Summoner:
A full rework is available.
Allows you to command your critters to attack or defend.
Wyrmic:
A few talents improved and many new categories.
General:
Loads of nature based artifacts.
A few of new inscriptions.
Oozemancer can get the Wild-gift/Symbiant category.

Druid Info

Zigur:
As Druid's use spells they cannot become a Zigur follower, as this would make all their talents unusable.
However, you can still attempt to join Zigur, you might get something special instead.

Categories:
Wild-gift/Land
Wild-gift/Seas
Wild-gift/Winds
Wild-gift/Woodland
Wild-gift/Minerals
Wild-gift/Weather
Wild-gift/Moss
Wild-gift/Volcanism
Wild-gift/Boreal
Wild-gift/Jungle
Wild-gift/Natural Cycles
Wild-gift/Eyal's Embrace
Spell/Staff Combat
Cunning/Herbalism
Wild-gift/Call

Werebeast Info

Categories:
Wild-curse/Wolf Aspect
Wild-curse/Treant Aspect
Wild-curse/Shark Aspect
Wild-curse/Eagle Aspect
Wild-curse/Ritch Aspect
Wild-curse/Silent Hunter
Wild-curse/Psiclaws
Wild-curse/Snake Aspect
Wild-curse/TigerAspect
Wild-curse/Bear Aspect
Wild-curse/Croc Aspect
Wild-curse/Fungus Aspect
Cursed/Rampage
Cursed/Predator
Wild-gift/Hunter

Woodsman Info

Categories:
Cunning/Stealth
Cunning/Trapping
Cunning/Woodcraft
Cunning/Poisons
Wild-gift/Summon-melee
Wild-gift/Summon-utility
Wild-gift/Summon-commands
Technique/Marksmanship
Technique/Archery-utility
Technique/Bow-fexibility
Technique/Combat-Training
Cunning/Survival
Cunning/Herbalism
Wild-gift/Hunter

Summoner Info

Two new summonable critters and revised summoning categories.

New Categories:
Wild-gift/Summon-commands
Wild-gift/Summon-techniques
Wild-gift/Symbiant

Wyrmic Info

New Categories:
Wild-gift/Sea Drake Aspect
Wild-gift/Wind Drake Aspect
Wild-gift/Hunter
Wild-gift/Wild Drake Aspect
Chronomancy/Blink Drake Aspect
Corruption/Blood Drake Aspect

Talent changes:
Lightning Speed now converts your damage to lightning for your next hit.
Wing Buffet replaced with Ember Scales: a flamey aura sustain.

Gives you a chance of dodging your own arrows or sling shots based on your Danger Sense talent level. Useful for archery-using characters (other than Archers, who are already protected by Shoot Down) against monsters that can pull you to themselves and into the path of your own in-transit missile.

Important: this addon will have no effect if left unconfigured! Please read the description!

Recommended settings:

• Requested FPS: 30
• Resting divider: 10
• Running divider: 5

Description:

Enables faster run/resting by use of FPS dividers.

These dividers simply divide the game's requested FPS by their respective values while resting or running. After starting a new game or loading a saved character, configure this addon by hitting escape -> video options. Setting these dividers to something greater than one can substantially reduce the amount of time required to finish resting/running on older computers.

Just be careful when resting on an escort mission...

Changelog:

See the forum discussion for the changelog.

Adds two new shadowy Celestial classes.
First is the Moon Paladin, who fight using two weapons and the two moons.
Second is the Starslinger, who imbues their shots with the power of the stars.
Also two new subraces that start in the Far East, regardless of class.
Mardrop Humans and Star Elves.

Now with a new starting zone: Save the Sunwall crops from a worm infestation.
New second starting zone: The Tenebrous Glades.
Travel to the barely made training camp of Midnight via a jumpgate on the west side of the Gates of Morning, then head southwest.
The shadows summoned to conceal the camp have become restless and dangerous. Quiet them down and investigate what is working them up.

Currently there are nine new categories.
Celestial/Night: A utility based generic category that generates negative celestial energies.
Celestial/Lunar Combat: Powerful offensive talents invoking the power of the moons.
Celestial/Guidance: Some defensive and one offensive talents for Moon Paladin.
Celestial/Shooting Stars: Combines star magic with ranged weapons.
Celestial/Deep Space: Some high level celestial magic for Starslinger.
Celestial/Sigils: Shape negative celestial energies into traps.
Celestial/Glory: High level light magic for Sun Paladins and Anorithil.
Celestial/Moon Magic: Magic derived from the two moons of Eyal.
Celestial/Umbra: High level dark magic for Anorithil and Star Slingers.

It also grants Sun and Glyphs to Sun Paladin at 1.3 mastery.
Reworks Chants and Hymns, and buffs Sunburst.

Removes certain ambient sound effects:
-Barking dogs in towns
-Howling wolves in dungeons
-Eagle screeches

Improves the "Press <control> to compare" functionality for objects.  New features:

• When pressing <control>, a note at the top of the text will tell you which object in your equipment is being compared against the current item.
• While holding <control>, tapping <shift> will cycle through the objects in your equipment that the current item can be compared to.  Useful when wearing two rings, dual-wielding, or using the second weapon set.
• (new in v3) Runes and inscriptions in your inventory or store inventories can be compared via <control> to corresponding inscriptions on your body.

Also available as part of the ZOmnibus Addon Pack and ZOmnibus Lite.

Time is a mystery to all...

Adds a new ChronoRogue class, the Anarchist.

Also reduces the paradox costs of Temporal Warden sustains.

Current unique categories:

Most of these talents will scale with your Paradox, so keep it as high as possible.

Living Paradox
Impossible Strength: passive. Allows dual weilding of medium weapons. offhand damage scales with paradox. improves stamina regen.
Impossible Grace: passive. accuracy based on paradox. don't trigger traps at 5.
Paradox Armour: sustain. reduces damage taken based on paradox, but also reduces paradox when you take damage.
Living Paradox: passive. temporal version of bloodspring

Temporal Theft
Steal Weapon: active. disarms the target.
Steal Speed: active. slow target to haste self.
Steal Magic: active. steal a target's magical buffs.
Steal Timeline: active. dump all your paradox on target creature, doing large temporal damage and stun.

Temporal Thuggery
Far Strike: active. melee attack your target from range. Stuns if it hits.
Space/Time: active. Hit your target with your main weapon for physical and knockback, then attack with offhand for temporal and slow.
Shield Implosion: active. a melee attack that causes the targets shields to collapse in on them, works against magical, mental and physical shields (blocking creatures).
Wide Strike: active. melee attack against all visible creatures in a range of x.

Impossible Magic - high level
Flame Shards: active. Ice Shards but does fire damage and freezes.
Gravel Bolt: active. physical damage beam that dazes.
Iceflash: active. Fireflash but does cold damage and burning.
Stormslide: active. lightning damage cone with knockback.

Twisted Fate - high level
Fate Inversion: active. Increases your critical hit chance and resistance, but lowers your critical hit damage.
Buildup: sustain. each weapon hit you do increases your spellpower up to a maximum of 100. Casting a spell resets this.
Time Shock: sustain. Hitting a creature with a spell has a chance to stun.
No Rules: active. For a short time your temporal resistance, effective willpower for paradox checks and stamina regeneration are increased.

Adds a new game option "Short-circuit some early dungeons" to enable or disable the new b43 behavior of skipping the player directly to the bottom of tier-1 dungeons if you're strong enough. The option will appear under Game Options in the <Esc> menu.

Also available as part of the ZOmnibus Addon Pack and ZOmnibus Lite.

This pack compiles several classes, with an emphasis on hybrid design. Not all classes are complete: the ones which I'm not satisfied with are marked as either INCOMPLETE or "in BETA".

The classes included in this pack are:
- The Transcendent Fist is an unarmed Psionic warrior, using a gem in his TK slot to hit with flexible energy types.
- The Storm Warden is a melee-and-ranged skirmisher with magical mobility and support spells.
- The Striker is a cunning and covert class, with a focus on delivering shock-and-awe thunderbolts from stealth.
- The Gravitic Infantry is a melee-focused Chronomancy user (formerly named the Heavy).
- The Creep is a stalker in the dark, cunning and covert in his hate.
- The Vector uses disease and debilitation to keep his foes at range while he snipes them to death.
- The Flenser is a Defiler whose knives debilitate and torture his victims.
- The Blood Mage is a Vim-based caster with a mild dip into staff-melee combat.
- ... and more!

(BETA) Shield Hero is an Adventurer who starts with heavy armor and a shield. Not very exciting unless you were annoyed about not being able to equip your Adventurer's shield right away.
(BETA) Prototype Hero is an Adventurer who starts with 1.3 mastery in every category. Not very useful for players, but it might be interesting for addon writers to spitball new category combinations.

(INCOMPLETE) The Flux Marauder is a Paradox thug, stealing time from his enemies.

x (Removed): The human-only Embers of Gerlyk are fire-using magical martial artists. Removed pending new content / 1.6 features.
x (Removed): The skeleton-only Fossils are geomantic martial artists. Removed pending new content / 1.6 features.

• FOR ToME v1.1.5 ONLY ***

Parts of this addon were merged into v1.2.0

Hand armor can slow down unarmed attack speed, but it is also having an impact on talents in the "Technique" category as well, slowing them by about 20%. This addon will update the speed of talents to use shield speed for shield skills, main weapon speed for all others, and if unarmed, it will use the default single-turn energy expendature of other talents not already in the Spell, Mind, or Summon categories.

Talents not in the Technique category, but also modified:

Plenum ToolTip: Enhanced tooltip display for ToME version 2.4 for ToME 1.3.0

This addon replaces the normal tooltip for actors in TOME with a more detailed description of monster abilities and characteristics. It adds to the standard tooltip detailed information on speed, main-hand, off-hand, and ranged damage, and damage modifiers and extra crit power, including damage penetration and damage affinities, plus retaliation damage, depending on what options are selected (from a tab in Game Options menu). This makes it much easier to inspect multiple monsters and quickly identify the most threatening. By holding a meta-key (ctrl, alt, or shift) and hovering the mouse over a monster, information on its status immunities and talents is displayed.

In addition, information on temporary terrain features (like smoke and darkness) and map effects (from spells and the like) will be displayed in the terrain tooltip if the appropriate options are enabled.

Version 3.0: Compatible with ToME 1.5.0

This addon supports game play for character levels higher than 50, primarily for the infinite dungeon (I.D.). This implements a number of subtle changes, rescaling game mechanics and balance for character levels above 50 in the Maj'Eyal, Infinite, and Arena campaigns for ToME. The intent is to make it possible (though certainly not easy) to reach level 500 of the Infinite Dungeon. This is not a nerf or a buff to game difficulty per se, but, rather, an extension of the well-balanced game play from the Maj'Eyal campaign to higher levels.

Some talents and status effects have been adjusted to accommodate the higher character levels possible. You can see a summary of these by checking the "Infinite500" tab in Game Options.

Once a character enters the I.D., the level 50 cap is removed and normal stats-per-level progression is enabled from level 51 onward. The limit on how high primary stats may be trained is removed (limited by character level as normal) and dependent computed value limits are also appropriately increased. No additional Prodigies are gained automatically after level 50. (Note that additional category points and (rarely) Prodigies can be gained by completing I.D. challenges.) Talent mastery levels can be improved more than once, and talent levels are unlearnable as normal in the I.D.

NPC levels in the I.D. have been adjusted to be compatible with higher game difficulty settings.

Most monsters and bosses from the Maj'Eyal campaign are imported into the I.D. along with their respective unique drops.

Traps have been added back to the I.D.

Isolated shops can appear randomly in the I.D. There is guaranteed to be at least one shop on level 1, and they become more common for the first few levels, and then more rare with depth.

Random escorts may be randomly generated on each level in the I.D. unless a challenge has been started, until the normal number (9) have been attempted.

The lichform quest is completed in the I.D. with a new random drop instead of automatically being completed at the appropriate step. There is a new greater vault in the I.D. that affects this quest.

The Corruption/Hexes tree can be learned from a new random drop.

Most major events from the Maj'Eyal campaign are enabled in the I.D., and there is a new event that can award the cursed-aura tree.

Undead characters starting in the I.D. begin with an artefact cloak. This is similar to the Cloak of Deception, but its stats scale with character level and it can spawn randomly for other characters.

This addon incorporates some modified game mechanics:
The ability to shrug off critical hits has been changed. Instead of using the percent value to ignore crits completely, it reduces the crit multiplier by the same amount to a minimum of 100%.

Modified checkHit and checkHitOld functions are employed that allow for wider level differences between opponents (see http://forums.te4.org/viewtopic.php?f=36&t=35229).
Saving throws have been modified slightly to make them more effective at reducing the duration of status effects you fail to save against. (See http://forums.te4.org/viewtopic.php?f=36&t=36715 for details.)

Things planned for the future: scaling of world artefacts with character level, map effects with dungeon level.

CORE CODE CHANGES
Key code changes appear in:

Engine:
engine\generator\map\Static.lua
engine\interface\ActorStats.lua
engine\interface\ActorTalents.lua

TOME Module:
mod\load.lua
mod\resolvers.lua
mod\class\Actor.lua
mod\class\Game.lua
mod\class\GameState.lua
mod\class\Object.lua
mod\class\Player.lua
mod\class\interface\Combat.lua
mod\class\interface\TooltipsData.lua
mod\dialogs\LevelupDialog.lua
data\birth\worlds.lua
data\general\events\damp-cave.lua
data\general\events\drake-cave.lua
data\general\events\fearscape-portal.lua
data\general\events\naga-portal.lua
data\general\events\old-battle-field.lua
data\general\events\rat-lich.lua
data\general\objects\world-artifacts.lua
data\general\objects\world-artifacts-far-east.lua
data\damage_types.lua
data\quests\lichform.lua
data\rooms\greater_vault.lua
data\zones\infinite-dungeon\events.lua
data\zones\infinite-dungeon\npcs.lua
data\zones\infinite-dungeon\objects.lua
data\zones\infinite-dungeon\zone.lua
data\zones\ruined-dungeon\grids.lua

Other addons that affect these files might not be compatible.

Adds Beholders as a playable race. Created by ajfluffy (design, code and conception) and rexorcorum (ideas and artwork), this addon is now being maintained by Nagyhal under the guidance of rexorcorum in ajfluffy's absence.

Edit: Had to change the addon's short_name, and so v1.0.6's automatic upload helpfully made us a completely new addon page. Of course it's all on Steam, which is beautiful (thank you DG!), but I'm hoping we can merge the older versions into this thread. We'll look at it tomorrow.

Edit of the edit: In the meantime, players who have fallen afoul of my clumsy Flame Laser bug are encouraged to upgrade to v5.9.2 for compatibility reasons. Have fun and happy facemelting!