SynergiesMOD is the overhaul that kept Torchlight II’s modded scene alive for over a decade. The Steam Workshop page describes it as a full conversion mod built around Veteran and Elite difficulty that adds custom towns, reworked skill progression, a new crafting system, over three hundred legendary items, and a tiered set of endgame dungeons. For players coming back to Torchlight II through the mod, the question is less what the mod changes than how to navigate its endgame layers and which builds hold up against them.

What the mod changes at the foundation

The Workshop listing lays out the baseline shifts. Synergies is harder than vanilla from the start: monsters spawn more numerous, every monster rolls random affixes that make each one unique, and bosses are reworked to hit harder. Skill unlock rate is reworked so skills appear earlier but progress more slowly between points, ending at or above vanilla standards. Fame is expanded to fifty levels, and enchantment stats are lowered so that endgame progression depends on gear rather than stacked enchants.

Two-handed and dual-wield weapon styles get bonuses to bring them closer to the survivability of shield builds, which matters because the mod’s difficulty assumes you are not hiding behind a shield. Green and blue magical items get better affix rates, and uniques get better base DPS and armor, so the loot curve rewards sticking with the mod’s item pool rather than importing vanilla gear.

The endgame layer progression

The mod’s endgame is structured as a series of dungeons divided into tiers, each gated by the gear you can farm in the previous one. The Workshop description gives the layer order.

Derinkuyu Raid (Tier 0) is the entry point, a custom dungeon with eighteen Synergies-exclusive bosses, each dropping a Synergies legendary. Reaching each boss means fighting through large packs of unique monsters, and each portal is guarded by a Guardian Spirit you must defeat. This is where you graduate from the campaign into the mod’s actual endgame.

Or’ak Basin Zone (Tier 0.5) is the Troll homeland, populated by Ancient Trolls. It drops Synergies legendaries and Legendary Skulls used to strengthen your character, and the zone applies a minor debuff to the player, so you need an endgame loadout to progress.

Darknessfalls Raid (Tier 1) is the outdoor raid dungeon where the hardest boss encounters and the highest-tier items live. The zone applies a debuff to the player to extend the loot search’s longevity, and the community notes that the debuff scales up considerably inside, so damage reduction and a large health pool are prerequisites rather than luxuries.

Alongside the raid tiers sit alternative leveling dungeons that scale to your level: the Realms of Discord, a chained series of small dungeons that the Workshop page calls the best place to level because every monster scales to the player; The Unstable Embers, a portal-scroll zone where you destroy crystals to trigger waves of monsters and bosses; and the Clockwork swarm maps, bought from Selrock vendors, which throw champions, bosses, or mercenaries at you depending on which map you enter.

The progression is therefore: campaign to Derinkuyu, Derinkuyu to Or’ak, Or’ak to Darknessfalls, with the alternative leveling dungeons as a parallel track for getting characters up to the gear requirements of each raid tier.

The custom classes

Synergies adds classes beyond the vanilla four, and the Workshop page and its changelogs describe them. The Necromancer is a spell-casting, melee-capable minion master. The Paladin is a close-range fighter built around a charge system, with the changelogs showing ongoing rework of its Honor, Divinity, and Justice skill trees. The Warlock is a dual-charge-bar melee spellcaster whose design the mod author calls extremely unique. The Ranger was added later, with charge-generating buff skills like Bladedancing, Sweeping Strikes, and Thousand Cuts.

The Paladin’s charge mechanics illustrate how the mod’s classes differ from vanilla. Several Paladin skills gain charge counters that build up and are then consumed at max charge for an empowered effect — Execution, for example, can only be used at max charge, deals a large percentage of weapon DPS, and refunds a portion of charge on hit. Other Justice-tree skills layer debuffs across tiers, with Sentencing adding movement, attack, and cast speed debuffs as you invest, and Inside Job progressing from shield break to interrupt to stun to fear. This creates a rotation where you build charge with one set of skills, apply debuffs to soften a target, and then spend the charge with another, which is a different rhythm from vanilla’s simpler charge bar.

Soulcrafting and the gear plan

The mod’s crafting system, called Soulcrafting, is exclusive to Synergies and is how endgame armor is finished. The Workshop page lists it alongside Chaos Ember Crafting and craftable damage-absorption gems that go up to seven percent damage reduction. Soulcrafting ties into the tiered dungeon progression because the souls and soulstones you need drop from the raid content, so you cannot shortcut the gear plan by crafting alone — you still have to run the dungeons.

The community notes on the mod’s Workshop discussions clarify the practical loop: Greater Souls are easier to get by transmuting unneeded Tier 0 items from Derinkuyu than by farming them in Or’ak, and Darknessfalls has its own waypoint plus a quest that guides you through the bosses in their intended order. Both Or’ak and Darknessfalls are reset by rerolling the world through LAN, which is how you farm the bosses repeatedly.

Build archetypes that hold up

Because the mod’s difficulty is tuned around Veteran and Elite and applies debuffs in its higher tiers, builds that work in vanilla do not automatically work here. The consistent threads across the long-running community discussions are damage reduction, health, and a reliable damage source that does not depend on perfect gear.

A shield-based build reaches high block recovery and damage reduction through Soulcrafting and the craftable gems, which is the safest entry into the raid tiers. Two-handed and dual-wield builds get the mod’s bonuses to bring them in line, and the endgame armor sets give those builds a defensive trigger that the vanilla game did not offer, with set bonuses that reward staying in the fight rather than hiding behind a shield.

For the custom classes, the Necromancer’s minion focus lets you lean on pet survivability while you gear up, the Paladin’s charge rotation rewards planning your skill order rather than mashing, and the Warlock’s dual charge bars mean you are managing two resources that feed different abilities.

What it means for players

SynergiesMOD is not a difficulty tweak; it is a parallel endgame. The tiered dungeon structure means there is always a next step — Derinkuyu, Or’ak, Darknessfalls — and each tier gates the next through both gear checks and the debuffs it applies. The custom classes and Soulcrafting give you tools vanilla Torchlight II does not have, but they are balanced around the mod’s harder enemies, so importing a vanilla character is a starting point rather than a finished build.

The mod is old and its Workshop discussions show the familiar pattern of a long-supported project — players asking whether it is still alive, the author noting downtime and then returning to patch the Paladin and Ranger. For a player picking it up now, that means the content is mature and the classes have been iterated on for years, which is a rare thing in a modded scene. Approach it as a full conversion: read the tier structure, pick a class that matches the playstyle you want, and let the dungeons dictate your gear progression rather than trying to outpace them.