Silksong Boss Codex — Every Boss in Pharloom, Ranked by Where You Fight Them
How this codex is organized
Silksong is gated by tool unlocks, crest unlocks, and silk-economy upgrades — not just by which act you are in. Two players can hit the same boss with very different toolkits depending on whether they have detoured for Clawline, Harpoon, or one of the deeper crest variants. This codex groups every named boss by the earliest point you can reach them on the main critical path, then notes the most-recommended crest and the tool loadout that makes each fight tractable.
Every entry links to a dedicated boss guide with phase tells, attack timings, and the punish windows that matter. If you are still picking your starter crest, start with the crest comparison and tool loadout guides linked at the end of this page — most fights become significantly easier with the right base loadout, not just with more skill.
Act 1 — Bone Bottom to the Citadel approach
| Boss | Best Crest | Tool Loadout | |
|---|---|---|---|
| Moss Mother | Moss Mother | Hunter (default) — clean parry windows reward the basic kit | Straight Pin + Cogfly + any 1 utility; no specialist tools required |
| Bell Beast | Bell Beast | Hunter — punish windows are wide enough for Needle DPS | Curveclaw if you have it, otherwise Straight Pin + Sting Shard |
Act 1 fight guides
- Moss Mother — opener fight; clear before Bone Bottom side quests. See the full Moss Mother phase guide.
- Bell Beast — first real DPS check; the bell-toss phase is the most-missed punish window. See the Bell Beast guide.
- Bellhart village hub and Bone Bottom progression guide cover the lead-up routing and what to pick up before each fight.
Act 2 — Citadel to Pharloom Upper
| Boss | Best Crest | Tool Loadout | |
|---|---|---|---|
| Sister Splinter | Sister Splinter | Reaper — extended pogo chains punish the slam recovery | Downstrike-focused; bring Sting Shard for adds |
| Lace | Lace | Hunter or Wanderer — Lace's parry windows are tight | Curveclaw for safe pokes; Cogfly to break aerial pressure |
| Carmelita | Carmelita | Witch — burst windows favor heavy silk-spend tools | Harpoon for repositioning + best damage tool you have |
| Widow | Widow | Shaman — sustained healing matters more than burst | Tool loadout focused on poison / DoT; Clawline for repositioning |
Act 2 fight guides
- Sister Splinter — first downstrike-mandatory boss. See the Sister Splinter guide and the downstrike mechanic walkthrough.
- Lace — see the dedicated Lace guide for the second-phase teleport pattern and the parry-recovery punish.
- Carmelita — high-DPS check; pair with the Witch crest build guide.
- Widow — multi-add fight, see the Widow guide and the Shaman crest build guide.
Mid-game gate fights
| Boss | Best Crest | Why it matters | |
|---|---|---|---|
| Voltvyrm | Voltvyrm | Reaper — long invincibility frames help with the lightning grid | Gates the Clawline upgrade region |
| Crust King | Crust King | Witch — burst windows match the throne-rise punish | Gates access to the Last Judge approach corridor |
| Pinstress | Pinstress | Hunter — clean ranged punishes; no movement gimmick needed | Optional Wishes quest boss; rewards the Pinstress tool |
Gate-fight guides
- Voltvyrm — see the Voltvyrm guide and the Clawline traversal guide for what you unlock by clearing it.
- Crust King — see the Crust King guide; pair with the best-tools mid-game tier list.
- Pinstress — Wishes-locked optional fight. See the Pinstress guide and the Wishes quest system explainer.
Act 3 — Upper Pharloom and the climb
| Boss | Best Crest | Tool Loadout | |
|---|---|---|---|
| Last Judge | Last Judge | Wanderer — mobility matters more than damage | Harpoon for vertical repositioning; Clawline for the platform-clear |
| Trobbio | Trobbio | Witch or Reaper — fight rewards committed burst windows | Best burst tool you have; Sting Shard for the orb phase |
| Skarrgard | Skarrgard | Hunter — parry timing is the central skill check | Curveclaw + Cogfly; tools that interrupt slams |
| Cogwork Dancers | Cogwork Dancers | Reaper — two-target uptime favors sustained DPS | AoE tools first; downstrike for double-target punishes |
Act 3 fight guides
- Last Judge — see the dedicated Last Judge guide; the platform-clear phase is the most-missed timing window.
- Trobbio — see the Trobbio guide; pair with the Witch crest build for burst.
- Skarrgard — see the Skarrgard guide; the parry mechanic explainer covers the parry-window timing the fight is built around.
- Cogwork Dancers — see the Cogwork Dancers guide; this is the hardest pre-final fight in the game.
Crest and tool loadout reference
- Crest system explained — what each crest changes about your kit and how the unlock chain works.
- Best crest for Act 1 — the recommended starter crest if you have not picked one yet.
- Hunter vs Reaper crest comparison — the two universally safe picks; this comparison covers which to lock in.
- Shaman vs Witch crest comparison — sustained healing vs burst damage, the two heavier-investment crests.
- Tool loadout guide — how to allocate your 3 tool slots once you have more than three usable tools.
- Silksong tools tier list — which tools to prioritize unlocking before the late-game bosses.
Pre-boss farming and economy
- Rosaries farming guide — earn the currency for crest unlocks and tool upgrades.
- Mask shard locations — every shard route, sorted by act.
- Silk spool upgrade locations — extend your bind-heal pool before the harder fights.
- Silk economy and bind healing explained — the core mechanic every late-game fight pressures.
Frequently asked questions
How many bosses are in Silksong?
Silksong has 12 main-path named bosses (Moss Mother, Bell Beast, Sister Splinter, Lace, Carmelita, Widow, Last Judge, Trobbio, Skarrgard, Cogwork Dancers, Voltvyrm, and Crowned as the final fight) plus optional gate fights (Crust King, Pinstress) and a number of mid-game enemies that escalate into mini-boss encounters. This codex covers every fight with a dedicated guide.
What is the best crest for the whole game?
Hunter is the safest pick for the first half because its kit rewards clean punishes without unusual silk-economy demands. Reaper takes over as the broadly best pick in Act 2 and Act 3 because its passive pogo chain punishes the slam-and-recover patterns most late-game bosses use. Witch is the highest-DPS option for committed burst windows; Shaman is the safest pick if you need sustained healing more than damage.
What order should I fight Silksong bosses in?
Follow the act ordering above. The critical path through Pharloom is mostly linear — Bone Bottom → Bellhart → Citadel → upper city → final corridor — with a small number of optional Wishes quest bosses that branch off. Voltvyrm and Crust King are the two gate fights that unlock major traversal upgrades. Pinstress is fully optional and only opens up if you complete the Wishes questline.
Which boss is the hardest?
Cogwork Dancers (a two-target sustained-pressure fight) is the hardest pre-final boss, and Crowned (the three-phase final fight) is the hardest overall. The other late-game fights (Last Judge, Trobbio, Skarrgard) are difficulty-tuned to be comparable to one another. Lace in Act 2 is the most-cited difficulty wall for early players because it is the first fight that demands clean parry timing.
Do I need every tool unlocked before the final boss?
No — Crowned can be cleared with the core silk-bind loop and a Reaper crest even if you skip several of the optional tools. The true-ending route requires more completion (all crests unlocked, mask shards, and the Wishes questline). The true-ending requirements page lists exactly what is missing for the gold-ending corridor.
Sources & verification
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Continue this guide path
- ›How to Beat Moss Mother in Silksong — First Boss Guide & Bind PracticeMoss Mother is Silksong's first real boss and the developers' way of teaching Bind timing. This guide breaks down her patterns and treats the fight as a tutorial for the next 50 hours.
- ›How to Beat Bell Beast in Silksong — Marrow Miniboss GuideBell Beast is the first true main boss after Moss Mother, at the top of The Marrow near Shakra. Trapped in a silk web — you must first learn Silkspear in Mosshome to free it. Drops the first Silk Heart and becomes Hornet's fast-travel mount across Pharloom.
- ›How to Beat Sister Splinter in Silksong — Greymoor Armored Boss GuideSister Splinter is Silksong's first hard skill wall — an armored Greymoor boss with a shell-deflect phase that turns most attacks into chip damage. This guide breaks both phases, the parry-only ground slash, and the Tool kit that survives the shockwave.
- ›How to Beat Lace in Silksong — Duelist Boss Pattern GuideLace is the first real difficulty wall in Silksong. This guide breaks down every attack pattern she uses, the tells you should watch for, and the loadout that finally lets new players push past her.
- ›How to Beat Carmelita in Silksong — Act 2 Elegant Duelist GuideCarmelita is the elegant duelist boss of Act 2 — a three-phase fight on a stone slab arena with a flame-line dodge check in phase 3 that is the toughest pre-Citadel skill test. This guide phases every attack and walks the Hunter Crest one-cycle setup.