Hero Siege Wormhole Guide (Season 10) — Unlock, Bosses, Loot
Season 10 Wormhole in Hero Siege Ebontharn is a ladder-race endgame: XP and loot are withheld until you kill the boss, and each successful run advances Wormhole level by +1 rather than up to +4. This guide compiles Steam's official Season 10 quote with pre-S10 baseline mechanics and cross-source community coverage.
60-second read. In Season 10, Wormhole is a ladder race ([F013] — Steam’s official S10 announcement): you get no XP or loot during a run, everything is deposited on boss kill, and Wormhole level always advances by exactly +1 per completed run. To run one: unlock at Inferno via Dr. Tinkerdink ([F034]) → clear the map inside 4 minutes ([F035]) → beat the boss for the accumulated reward and Wormhole-level advance. Anything you have seen tagged “S18” for Hero Siege is likely mislabelled — Season 10 Ebontharn launched 2026-08-21 ([F001], [F004]).
S10 vs pre-S10 — mechanical differences
The single most important thing to know for S10 is that the reward and pacing rules changed. Sources published before 2026-08-21 describe the pre-S10 model.
| Dimension | Pre-S10 (community baseline) | Season 10 (Steam-official) |
|---|---|---|
| XP / loot timing | Dropped continuously during the run | Deposited only on boss kill ([F013]) |
| Wormhole level increase | Fast clear could grant up to +4 ([F012]) | Fixed +1 per completed run ([F013]) |
| Failure penalty | No reward | No reward (unchanged) |
| Satanic-tier drops from boss | Yes ([F037]) | Yes ([F052] — mechanic changed, tier pool did not) |
Not published as fact. A single-source u4gm post ([F013b]) describes death costing −1 Wormhole level, +5 “fast-clear” items and a 10% map-compression rule for S10. These are not included in this guide until a second source confirms them.
Unlock
- Difficulty: Inferno ([F034]).
- NPC: Dr. Tinkerdink, top-left of Inoya Village — interact to open the Wormhole ([F034]).
- Character level: pre-S10 threshold was Level 100 on Inferno / Level 80 on Hell ([F038]). No Steam announcement for S10 changes this threshold, but no S10 source explicitly re-confirms it either — treat as pre-S10 baseline until S10 confirms.
Inside a Wormhole run
- Time limit: clear the map inside 4 minutes to spawn the boss ([F035]).
- Enemy level baseline: pre-S10 data shows Wormhole 1 monsters around Level 140 ([F012]) — labelled pre-S10 because no S10 source has published a refreshed scaling table.
Boss and rewards
- Beating the boss opens the exit portal plus a mystery chest and, occasionally, a crystal chest ([F036]).
- Drop pool: the boss has a chance to drop Satanic-tier items; deeper Wormholes add exclusive Satanic items, rare crafting runes, and end-of-season cosmetics ([F037], [F052]).
- Ruby drops scale with Wormhole level ([F036]).
Boss naming — resolved as negative finding. Steam’s official S10 announcement and four independent sources (u4gm, mobalytics, Metaroad, ezg) do not name a specific S10 Wormhole boss ([F066]). This guide deliberately uses the generic term “Wormhole boss” and does not attribute Phantom Leviathan, Captain Grimtide or Blood Maiden to the Wormhole pool — those are Act IX content, not Wormhole.
Farm efficiency and cadence
- The S10 rule shift (XP / loot only on boss kill, +1 per run) makes slow clears structurally worse: they cost more time per Wormhole-level tick than they used to ([F013]).
- Historical data point: Satanic drop rate was increased 15% at a prior patch ([F039]), supporting the general read that fast-clear farming has been the intended play pattern.
Coverage Gap — drops per hour. No cross-source numeric benchmark for expected drops / hour or expected Satanic drops per Wormhole level is published for S10.
Recommended class / build
This page does not name a single “best” Wormhole class. Use the cross-source top picks:
- Consensus S-tier → Demonspawn Blood & Bone ([F049]).
- Consensus A-tier premium / hardcore-viable → Paladin Lightning Fury ([F048]).
- Full class comparison → Season 10 tier list.
Coverage Gap — S10-specific Wormhole-farming build. No source reviewed publishes a dedicated “best S10 Wormhole farmer” write-up beyond the general S10 tier list.
Terminology note — “Satanic mode”
“Satanic” is an item tier, not a map affix ([F052]). Any older guide labelling Wormhole itself as “Satanic mode” is using a pre-S10 shorthand that does not match the S10 mechanic; treat those references as tier-pool statements, not mode-selection statements.
Sources and verification date
All external sources below were checked 2026-08-23.
- Steam — Season 10 Ebontharn announcement (Wormhole section) — XP / loot on boss kill and +1 Wormhole-level rule ([F001], [F013], [F066]).
- Fandom Hero Siege Wiki — Wormhole entry — layout, chest tiers, Satanic-tier loot pool ([F036], [F037], [F052]).
- Fandom Hero Siege Wiki — Patch Notes — patch history baseline ([F011]).
- Steam Community — Endgame / Wormhole guide (community-authored) — pre-S10 baseline overview ([F012]).
- Steam Community — Wormhole unlock discussion — unlock prerequisites baseline ([F034]).
- Steam Community — Wormhole completion rules — 4-minute clear window and completion rules ([F035]).
- Steam Community — Wormhole unlock version discussion — cross-version unlock notes ([F038]).
- Steam Community — Satanic tuning discussion — Satanic-tier context ([F039]).
- ARPG Timeline — Hero Siege season list — S18 mislabel warning / no S18 in season history ([F004]).
hstracker Wormhole reference — retracted ([F013] audit trail): originally cited to double-source the +1 rule, but reinspection found no Wormhole segment; only the Steam official quote is used. Internal Fact IDs like [F013] are the audit trail; the URLs above are the public citation.
Coverage gaps disclosed on this page
- S10 character-level unlock threshold (pre-S10 baseline used)
- S10 Wormhole-level scaling table (per-level monster level delta)
- Expected drops per hour or per Wormhole level