WIKI
Act Bosses & the red portal
Each of the game's three acts ends in an Act Boss. You challenge the boss for your current difficulty by tapping the red portal (typically bottom-right). Beating it awards a guaranteed red boss chest — the best loot pool available at that difficulty — which makes Act Bosses the premier source of high-rarity gear and materials in the mid game.
The soul stone rule (this is the important part)
Challenging an Act Boss costs a soul stone, but with a crucial twist:
You only spend a soul stone when you clear the boss. Failing costs nothing. So you can throw yourself at a boss as many times as you like to test whether your party is strong enough — you only "pay" when you win and collect the reward.
That changes how you should play it: never hoard stones out of fear of "wasting" them on a loss. Attempt freely; the stone is really the price of the reward, not the attempt.
The four soul stone tiers
Soul stones come in tiers that match the four difficulties, and you need the matching tier to challenge a boss at that difficulty:
| Tier | Used for |
|---|---|
| Normal | Act Bosses on Normal difficulty |
| Nightmare | Act Bosses on Nightmare |
| Hell | Act Bosses on Hell |
| Torment | Act Bosses on Torment (top tier) |
Where to farm soul stones
Soul stones drop from specific stages. The key insight most players miss:
A lower stage you can clear quickly and repeatedly usually farms more soul stones per hour than the hardest stage you can barely beat. Prioritise clear speed and reliability over raw stage level.
Run a stage your party crushes, with Far North auto-open handling chests, and let volume do the work. And because soul stones are tradeable on the Steam Market, you can simply buy the tier you need if farming is too slow — they're one of the more liquid items in the economy.
Boss chests & rewards
The payoff for spending a stone is a guaranteed red boss chest scaled to the difficulty you cleared. Higher difficulties yield better rarities, so the long-term loop is: out-gear your current tier → clear its Act Bosses for red chests → use that gear to push the next difficulty. Pair this with the Cube to synthesize and socket what you pull.
Act & difficulty progression
There are 3 acts, each replayable on Normal, Nightmare, Hell and Torment. Enemy levels jump sharply each difficulty (a stage can leap from the ~20s on Normal into the ~90s on Torment), so difficulty is your main progression dial. Clear an act's stages, beat its boss, then step up a difficulty when your gear can handle the level spike. Full structure is in the mechanics guide.
Stuck on an act?
- Don't brute-force the boss — failing is free, but if you keep losing, gear up first
- Farm a fast stage for chests and soul stones; feed gold into the rune tree
- Push gear to Legendary+ in the Cube and match affixes to roles (items guide)
- Make sure you're running a full tank + damage + Priest party (tier list)
- Buy the soul stone tier you need on the market if it's gating you
FAQ
How do soul stones work?
They're spent to claim an Act Boss reward, but only on a clear — failing costs nothing, so you can attempt bosses freely.
How do I get more soul stones?
Farm fast stages that drop them (speed beats difficulty), or buy them on the Steam Market — they're tradeable and in demand.
What do Act Bosses drop?
A guaranteed red boss chest with the best loot for that difficulty — the main mid-game gear source.
Should I save soul stones?
No need to hoard — you only pay on a win. Spend them whenever you can clear a boss for the reward.
Drop rates and exact farming stages shift between patches; treat specifics as current-patch guidance. Unofficial fan resource, not official Nugem Studio data.