Expedition Into Darkness Bonekin

Bonekin are the patient death of Expedition Into Darkness. Antediluvian Interactive’s medieval co-op extraction looter (Steam app 3126410, planned Q4 2026) peels open Catacomb-style ruins where skeletal packs march without haste, without fear, and without end. Party size is 1–5. Permadeath deletes the character and carried loot; the camp stash alone is safe. This page explains how Bonekin differ from Fleshkin rushes and Goblin angles, how to fight the cold march, and how to leave tunnels before the hallway becomes a funeral procession.

Read with combat and controls, how to extract, the map hub, and beginner builds. Siblings: Fleshkin, Goblins, Bosses, enemies hub.

What Bonekin feel like

Fleshkin scream and sprint. Goblins knife from angles. Bonekin arrive. The tempo is slower, which tricks greedy players into long animations, inventory opens, and “one more chest” decisions while a shield wall still stands. In open Moor pockets they are manageable. In Catacomb Ruins they become a wall that converts tunnel vision into a wipe.

Core habits:

1. Never assume a skeleton is “almost dead enough” to ignore while you loot.
2. Chip carefully; keep a lane open toward a named exit.
3. Do not spend your stamina bar on vanity finishes when the march still has bodies.
4. Treat quiet audio as suspicious, not safe — especially near chapels and deep halls on the map.

Roster and playtest notes

Bonekin appear as fleshless skeletons that crave the touch of warm flesh. Playtest and community notes describe role variety inside the cold march — shieldbearers, spearmen, man-at-arms silhouettes, standard bearers, two-handers, halberdiers, crossbowmen, watchers, and heavier undead such as sorcerer or fallen-knight style threats. Exact names and stats move with builds; the useful mental model is roles, not a fixed spreadsheet:

Role cluster	What it does to your run	Counter habit
Shield / front line	Holds the hallway	Feint, rotate, do not trade forever
Spear / halberd reach	Punishes peeks in chokes	Sidestep the poke; reclaim stamina
Two-hander pressure	Heavy commits	Punish recoveries; refuse greed
Crossbow / watcher	Pins from the back line	Soft-delete ranged when a window opens
Elite undead (sorcerer / knight)	Pack amplifiers	Call focus in co-op; skip if bags are full

If a boss skull marker sits behind a Bonekin gauntlet, open bosses before you treat the marker as mandatory content.

Drops and expectations

Bonekin are not the primary tongue/finger/ear farm that Fleshkin and Goblins advertise. Treat them as tempo and route taxes: they cost stamina, time, and extract distance. When they do drop reagents or salvage worth carrying, the same permadeath rule applies — bank it in camp after a successful leave. Do not invent farm routes that ignore how to extract.

Compare reagent goals with Fleshkin (Corpse Tongue, Biler’s Bile) and Goblins (Goblin Finger, Ogre Ear) so you know why you entered a skeleton hallway in the first place.

How to beat the cold march

Tempo control

Bonekin punish players who fight like they are still on open Moor ground. In tunnels, every overcommit is a closed door behind you. Prefer short exchanges: hit, step, reclaim stamina, reassess the lane. The stamina chapter in combat and controls matters more here than raw DPS fantasy.

Weapon choices

• Spears / polearms — lane control and respectful peeks.
• Maces — useful when armored or plated undead silhouettes show up later.
• Bows / crossbows — delete back-line shooters before the front line pins you.
• Avoid opening inventory mid-march. Bonekin do not need grenades to win a Tetris fight — they only need time.

Starter kits that favor reach and a simple backup live under beginner builds.

Pull discipline

Accidental double pulls in Catacombs are how “slow” enemies erase parties. Pull with intent, fight near a known retreat path, and stop when the leave trigger hits even if the last shieldbearer is one swing from death. Extraction is the win condition.

Where Bonekin dominate

Catacomb-style ruins are the classroom. Use the map hub and Catacomb notes to name primary and backup exits before you drop. Mixed sites may blend Bonekin with Fleshkin or Goblins — do not bring a single-purpose kit. If you still die to sprints more than marches, master Fleshkin first. If angles and Ogres are the problem, fix Goblins first.

Co-op vs Bonekin

With up to five players:

• Anchor holds the shield wall without greedy finishers.
• Reach controls the lane so the party is never fully surrounded.
• Ranged deletes crossbowmen and softens elites.
• Caller tracks march edges and extract timing — tunnels hide second packs.

Revive attempts that drag the party deeper into the procession are classic full wipes. Leave with living couriers.

Common wipe patterns

1. Treating Bonekin as “slow trash” and opening inventory mid-fight.
2. Finishing animations while a second hallway pack arrives.
3. Fighting with no named exit in Catacombs.
4. Chasing a standard bearer into an elite undead room with full bags.
5. Ignoring leave triggers because “skeletons are free.”

Practice plan

1. Clear one shield-front pack using only short stamina-safe exchanges.
2. Add a back-line shooter and force a ranged priority call.
3. Run a Catacomb pocket with a pre-named exit and a hard leave trigger.
4. Extract on purpose even if the march “looks farmable.”

Bonekin teach patience the hard way. Chip the wall, keep the lane, bank what you carried, and let the cold bones keep marching without you. Return to the enemies hub when the next death belongs to a different family — or to a skull you should have skipped.